Synonyms and antonyms of Important in British Thesaurus

important (adjective)

something that is important has a major effect on someone or something, for example because it affects someone’s life or the way a situation develops

major (adjective)

important, serious, large, or great

key (adjective)

very important

vital (adjective)

very important, necessary, or essential

crucial (adjective)

something that is crucial is extremely important because it has a major effect on the result of something

significant (adjective)

very important

fundamental (adjective)

essential to the existence, development, or success of something

central (adjective)

something that is central is extremely important, and often causes something else to happen or develop

meaningful (adjective)

serious, useful, or important

great (adjective)

important or powerful

all-consuming (adjective)

so important or interesting to you that you cannot think of anything else

all-important (adjective)

very important, or the most important of all

at stake ()

used about important issues that are involved in a situation or could be decided by it

be/mean the world to someone ()

used for emphasizing that someone or something is very important to someone

big (adjective)

important or major

bread-and-butter (adjective)

very important or the most basic

burra (adjective)

Indian English big or important

cardinal (adjective)

formal very important

climactic (adjective)

a climactic event, moment etc is the most exciting or important one in a series

close/dear/near to someone’s heart ()

very important or interesting to someone

consequential (adjective)

formal important

cosmic (adjective)

often humorous very big, important, or difficult to understand

critical (adjective)

very important

crunch (noun)

extremely important, usually because of having a major effect on the result of a situation

dominant (adjective)

more important, powerful, or successful than the other people or things of the same type

earth-shattering (adjective)

extremely surprising and important

epoch-making (adjective)

having an important effect on the future

especial (adjective)

very formal special

eternal (adjective)

always true or important

exalted (adjective)

formal used about people who have important positions

explosive (adjective)

very large in size, amount, or importance and happening over a very short period of time

far-reaching (adjective)

affecting a lot of people or things in an important way

focal (adjective)

of major importance

high (adverb)

to or at an important position

high (adjective)

important compared to other people or things, especially in a particular system or organization

high on the list (of priorities) ()

important and likely to be dealt with soon

historic (adjective)

a historic event or time will be recorded in history because it is very important

hot (adjective)

a hot issue is important and causes arguments because people strongly disagree

in particular ()

special or important

landmark (noun)

important and likely to influence future actions or decisions

live (adjective)

a live issue continues to be important and relevant

major-league (adjective)

mainly American leading, or important

make-or-break (adjective)

bringing either total success or total failure, and therefore very important

material (adjective)

important enough to notice or to have an effect

mere (adjective)

used for emphasizing the importance or influence of something, although it seems like only a small thing

momentous (adjective)

very important because of having an effect on future events

monumental (adjective)

used for emphasizing how good or important something is

not just anyone ()

used for referring to someone special

not least ()

used for emphasizing the importance of a particular aspect of a situation

of biblical proportions ()

very big or important, especially in a bad or unpleasant way

of concern to someone ()

if something is of concern to you, you think it is important and you feel worried about it

of note ()

important, or famous

overarching (adjective)

formal affecting or including everything, and therefore very important

pivotal (adjective)

extremely important and affecting how something develops

prize (adjective)

very important or valuable

prized (adjective)

considered to be very important or valuable

prominent (adjective)

important and well known

real (adjective)

important or impressive enough to be worth considering or worrying about

sacred (adjective)

so important that you should not change, question, or criticize it

sacrosanct (adjective)

considered too important to be changed or criticized

serious (adjective)

important and deserving attention

signal (adjective)

very formal especially important and noticeable

significantly (adverb)

in a way that is relevant or that has an important effect on something

something cannot be overstated (formal)

formal used for saying that something is extremely important or serious

something is king ()

something that influences a lot of people

special (adjective)

very important to you

substantial (adjective)

important, or real

tangible (adjective)

important and noticeable

telling (adjective)

very important, or having a large effect

titanic (adjective)

extremely large, powerful, or important

to the fore ()

into a position of importance

towering (adjective)

mainly journalism extremely impressive, important, or successful

treasured (adjective)

very valuable or important to you

tremendous (adjective)

used for emphasizing that something such as an amount, achievement, or feeling is extremely great, important, or strong

valuable (adjective)

very useful and important

valuable (adjective)

valuable time is important because there is not much of it available

vaunted (adjective)

formal generally praised, or described as very important or successful

vitally (adverb)

in an extremely important way

weighty (adjective)

serious and important

worthy of note ()

important, or interesting