Synonyms and antonyms of Prefixes in British Thesaurus

a- (prefix)

without or not: used with some adjectives and adverbs

aero- (prefix)

planes or the air: used with some adjectives and nouns

Afro- (prefix)

African: used with some adjectives and nouns

after- (prefix)

happening after something: used with some nouns

all- (prefix)

only: used with many adjectives and nouns to show that something includes only the type of thing or person mentioned

all- (prefix)

whole: used with many nouns to show that something includes the whole of something, or all the people or things of that type

all- (prefix)

including everything: used with some adjectives and participles to show that something includes everything, or to add emphasis

Anglo- (prefix)

involving or related to England or the UK

ante- (prefix)

before: used with some nouns, adjectives, and verbs

anti- (prefix)

opposed to someone or something: used with many nouns and adjectives

anti- (prefix)

with the opposite qualities or effects: used with some nouns and adjectives

anti- (prefix)

preventing or curing something: used with some nouns and adjectives

arch- (prefix)

main: used with some nouns

astro- (prefix)

relating to the planets and stars or space: used with some nouns, adjectives, and adverbs

auto- (prefix)

relating to yourself: used with some nouns and adjectives

auto- (prefix)

working alone without any person being involved: used with some nouns, verbs, and adjectives

bi- (prefix)

two or twice: used with many nouns, adjectives, and adverbs

bio- (prefix)

relating to living things or someone’s life: used with some nouns and adjectives

cardio- (prefix)

relating to the heart: used with some adjectives and nouns

co- (prefix)

together: used with some nouns, verbs, and adjectives

co- (prefix)

sharing a job or responsibility: used with some nouns, verbs, and adjectives

con- (prefix)

together with other people, groups, or things: used with some nouns, verbs, and adjectives

counter- (prefix)

opposing: used with some nouns, adjectives, and verbs

cross- (prefix)

across: used with some nouns and adjectives

cross- (prefix)

combining or involving different things: used with some nouns, verbs, and adjectives

crypto- (prefix)

hidden or secret: used with some nouns and adjectives

cyber- (prefix)

relating to computers and the Internet: used with some adjectives and nouns

de- (prefix)

used with many verbs, nouns, and adjectives for giving a word the opposite meaning

demi- (prefix)

half, or small: used with some nouns

demi- (prefix)

partly, or slightly: used with some nouns

di- (prefix)

two or twice: used with some adjectives and nouns

dis- (prefix)

used with some nouns, verbs, and adjectives for giving a word the opposite meaning

down- (prefix)

lower in position, amount, quality, or importance: used with some nouns, verbs, adjectives, and adverbs

e- (prefix)

on or using the Internet: used with some nouns for making new words

eco- (prefix)

relating to the environment: used with some nouns and adjectives

Euro- (prefix)

relating to Europe: used to make adjectives and nouns

ever- (prefix)

always or continuously: used with many adjectives and ‘-ing’ verb forms

ex- (prefix)

used with nouns that describe someone’s job, rank, or relationship to someone, for showing that they no longer have that job, rank, or relationship

exa- (prefix)

1018, used in some measurements

extra- (prefix)

outside or beyond something: used with some adjectives

femto- (prefix)

10-15: used with some nouns

Franco- (prefix)

with or against France: used with some adjectives and nouns

fresh- (prefix)

new, or recent: used with past participles

geo- (prefix)

earth: used to make adjectives and nouns

giga- (prefix)

computing a billion (230): used with some nouns

giga- (prefix)

a thousand million (109): used with some nouns

Graeco- (prefix)

Greek, or ancient Greek: used with some adjectives and nouns

great- (prefix)

used with nouns describing older relatives to make other nouns meaning the grandfather, grandmother etc of your parent

great- (prefix)

used with nouns describing younger relatives to make other nouns meaning the child of your grandson, granddaughter etc

Greco- ()

another spelling of Graeco-

haemo- (prefix)

relating to blood: used with some nouns and adjectives

hemo- (prefix)

the American spelling of haemo-

hyper- (prefix)

more than usual or normal: used with some adjectives and nouns to make adjectives and nouns

il- (prefix)

not or no: used with some adjectives and nouns that begin with ‘l’ to give the opposite meaning

ill- (prefix)

badly: used with many past participles

ill- (prefix)

bad or unpleasant: used with some nouns

im- (prefix)

not or no: used with some adjectives and nouns that begin with ‘b’, ‘m’, and ‘p’ to give the opposite meaning

in- (prefix)

not or no: used with some adjectives and nouns

Indo- (prefix)

Indian: used with some adjectives and nouns

inter- (prefix)

between: used with some nouns, verbs, or adjectives

intra- (prefix)

within something: used with some adjectives and nouns

intra- (prefix)

into: used with some adjectives

ir- (prefix)

not, or no: used with some adjectives and nouns that begin with ‘r’ to give the opposite meaning

kilo- (prefix)

1000 units: used with some nouns

m- (prefix)

used with nouns to make other nouns that refer to activities that can take place anywhere, using mobile technology. m- is short for mobile.

macro- (prefix)

large, or considered in a general way: used with some nouns and adjectives

mal- (prefix)

bad, or badly: used with some nouns, adjectives, and verbs

mega- (prefix)

science one million: used with some units of measurement

mega- (prefix)

very large or important: used with some nouns

meta- (prefix)

outside what is real or usual: used with some adjectives and nouns

meta- (prefix)

relating to change: used with some adjectives, verbs, and nouns

micro- (prefix)

extremely small: used with some nouns and adjectives

micro- (prefix)

science one of a million equal parts of something: used with some nouns

mid- (prefix)

the middle of a period of time: used with many nouns

milli- (prefix)

one of a thousand equal parts of something: used with many nouns

mis- (prefix)

bad, or badly: used with some nouns and verbs

mis- (prefix)

wrong, or wrongly: used with some nouns and verbs

mock- (prefix)

not real or true: used with some adjectives

mock- (prefix)

copying a particular style: used with some adjectives

mono- (prefix)

single, or one: used to make adjectives and nouns

much- (prefix)

a lot: used with the past participles of many verbs for emphasis

multi- (prefix)

many, or several: used with some adjectives and nouns

must- (prefix)

used with verbs to make adjectives that describe something that you must do

nano- (prefix)

one of a thousand million equal parts: used with some nouns

nano- (prefix)

science involving the use of nanotechnology: used with some nouns

near- (prefix)

almost: used with many nouns and adjectives

neo- (prefix)

modern, or new: used with many nouns and adjectives to make nouns and adjectives describing things that exist in the present in a slightly different form from the way that they existed in the past

non- (prefix)

not: used with nouns and adjectives

non- (prefix)

failure to do something: used with nouns

non- (prefix)

not good or exciting: used with nouns

nu- (prefix)

modern, or new: used especially with styles of music to show that they exist in a different form from the past

oft- (prefix)

often: used with the past participle of many verbs

omni- (prefix)

everywhere, or everything: used with some adjectives

out- (prefix)

bigger, better, longer etc: used with many verbs

out- (prefix)

outside, or away from: used with many nouns and adjectives

out- (prefix)

used for forming nouns and adjectives from verbs that are followed by ‘out’

over- (prefix)

too much: used with many verbs, nouns, or adjectives

over- (prefix)

more than: used with some nouns

over- (prefix)

on, or above: used with some nouns

over- (prefix)

on top of: used with some nouns

pan- (prefix)

all: used with some adjectives and nouns

para- (prefix)

beyond: used with some nouns and adjectives

para- (prefix)

giving help to professional people: used with some nouns and adjectives

para- (prefix)

similar to: used with some nouns and adjectives

para- (prefix)

involving the use of a parachute: used with some nouns

part- (prefix)

to some degree, but not completely: used with some nouns and adjectives

peta- (prefix)

1015, used in some measurements

photo- (prefix)

relating to photographs: used with some nouns and adjectives

photo- (prefix)

relating to light: used with some nouns and adjectives

poly- (prefix)

more than one: used with some adjectives or nouns

post- (prefix)

after, or later than: used with many nouns, verbs, or adjectives

pre- (prefix)

before: used with many nouns, verbs, or adjectives

pseudo- (prefix)

not real, but pretending to be real: used with many nouns and adjectives

psycho- (prefix)

connected with your mind: used with some nouns and adjectives

quasi- (prefix)

partly: used with many adjectives and nouns

quasi- (prefix)

pretending to be: used with many adjectives and nouns

re- (prefix)

again: used with many verbs, nouns, or adjectives

re- (prefix)

again in a different way: used with many verbs, nouns, or adjectives

re- (prefix)

back to the way that something was before: used with many verbs and nouns

ready- (prefix)

already: used with some past participles

rent-a- (prefix)

humorous used with some nouns to refer to someone who is willing to become involved in anything, especially in exchange for money

retro- (prefix)

back, or backwards: used for making some nouns, verbs, and adjectives

schm- (prefix)

informal humorous used in front of a word that repeats the previous word in order to comment humorously on or dismiss something

self- (prefix)

relating to yourself or itself: used with many nouns and adjectives

semi- (prefix)

exactly half: used with some nouns

semi- (prefix)

partly but not completely: used with some adjectives and nouns

she- (prefix)

female: used with some nouns

Sino- (prefix)

China, or Chinese: used for making some nouns and adjectives

Sino- (prefix)

with China: used with some adjectives and nouns

socio- (prefix)

relating to society and social matters: used with some adjectives and nouns

step- (prefix)

related to someone through a second or later marriage: used with nouns showing a family relationship

sub- (prefix)

one small part of a larger thing: used with some nouns

sub- (prefix)

smaller or less important than someone or something: used with some nouns

sub- (prefix)

below or under something: used with some nouns and adjectives

sub- (prefix)

further south: used with some nouns and adjectives

super- (prefix)

more, better, or bigger than usual: used with many nouns, adjectives, and verbs

tele- (prefix)

involving the telephone or television: used with some nouns and adjectives

tera- (prefix)

one trillion: used with some units of measurement

trans- (prefix)

across: used with some adjectives relating to place names to make adjectives meaning from one side of that place to the other

trans- (prefix)

changing: used for making nouns, adjectives, or verbs

trans- (prefix)

between: used for making nouns, adjectives, or verbs

tri- (prefix)

three: used with some adjectives and nouns

uber- (prefix)

often humorous very: used with adjectives

uber- (prefix)

often humorous total, or complete: used with nouns

ultra- (prefix)

extremely: used with many adjectives

ultra- (prefix)

science outside a particular range: used with some nouns and adjectives

un- (prefix)

used with many adjectives, adverbs, and verbs to give the opposite meaning

under- (prefix)

below: used with many nouns

under- (prefix)

less powerful or important: used with some nouns

uni- (prefix)

single: used with some adjectives and nouns

up- (prefix)

in or going towards a position that is higher or further north: used with some adjectives, nouns, and adverbs

up- (prefix)

happier, or more exciting: used with some adjectives, nouns, and verbs

up- (prefix)

moved or changed completely: used with some adjectives, nouns, and verbs

vice- (prefix)

used with the name of a senior job title for referring to the person holding a job immediately below that one