Synonyms and antonyms of Not effective or useful and not working correctly in British Thesaurus

useless (adjective)

useless objects have no purpose or cannot do what they were designed to do

useless (adjective)

useless activities are not effective in achieving the purpose that they were intended to achieve

ineffective (adjective)

something that is ineffective does not work correctly or does not do what you want it to do

inefficient (adjective)

not working in the best possible way, especially by not using time, supplies, energy etc in the most effective way

defective (adjective)

not made correctly, or not working correctly

faulty (adjective)

not working correctly or made correctly

purposeless (adjective)

lacking a useful purpose

pathetic (adjective)

useless or not effective in an annoying way

worthless (adjective)

not having any value, or not useful

cumbersome (adjective)

not simple, fast, or effective enough and difficult or annoying to use

vexatious (adjective)

old-fashionedlegal vexatious legal action has no purpose other than to cause annoyance

after a fashion ()

not very well or effectively

anaemic (adjective)

weak or not effective

attenuated (adjective)

medical made weak or less harmful

be no use ()

to be useless

be of no use ()

to be useless

bum (adjective)

informalAmerican used for describing a body part that does not work correctly

dead (adjective)

no longer considered useful, relevant, or likely to be successful

dead (adjective)

a dead match has already been used and is now useless

defunct (adjective)

not existing or working any more

dicky (adjective)

Britishinformal not working correctly

dud (adjective)

British broken, useless, or not working correctly

duff (adjective)

British useless, broken, or poor in quality

dysfunctional (adjective)

not working normally

empty (adjective)

used about things that people do that have no real effect

enfeebled (adjective)

formal no longer strong or effective

facile (adjective)

too simple to deal with the difficulties of a real situation

flabby (adjective)

British not effective or powerful enough

flaccid (adjective)

a flaccid argument or idea is not effective

footling (adjective)

old-fashioned not important or useful and therefore annoying

futile (adjective)

unsuccessful, or useless

idle (adjective)

not really intended or not likely to have any result

inactive (adjective)

not working or operating

ineffectual (adjective)

something that is ineffectual fails to achieve what it is intended to achieve

infertile (adjective)

producing no good or useful results

inoperable (adjective)

formal not working or capable of being used successfully

in/out of phase ()

happening or not happening at the same time as something else

in vain ()

in a way that has no purpose or meaning

it would be idle to do something ()

used for saying that something is useless or a waste of time

moribund (adjective)

formal no longer effective and not likely to continue for much longer

muddled (adjective)

not clear or effective

muted (adjective)

not as strong or extreme as usual

no good ()

not useful or effective

nugatory (adjective)

very formal not important or effective

off-colour (adjective)

not working or performing as well as usual

old (adjective)

used in a negative way about something that is not useful or in good condition any longer

otiose (adjective)

very formal not necessary and with no useful purpose

outmoded (adjective)

no longer useful, suitable, or relevant

out of joint ()

if a system is out of joint, it is not working correctly

out of whack (informal)

informal not working normally

outworn (adjective)

no longer useful or important

overworked (adjective)

used too much to be useful or effective

paper (adjective)

officially existing but not effective or able to be used in real situations

paralysed (adjective)

completely unable to operate normally or effectively

played-out (adjective)

old-fashioned and no longer useful

pointless (adjective)

lacking any purpose or use

porous (adjective)

not effective in preventing people from attacking or escaping

ramshackle (adjective)

not organized or effective

rubbish (adjective)

Britishvery informal useless

small-time (adjective)

not very important or effective

spent (adjective)

used and no longer useful

superannuated (adjective)

often humorous old and no longer working or useful

temperamental (adjective)

humorous used for describing something that often goes wrong or does not work in the way that you expect

there is no percentage in (doing) something ()

there is no advantage or benefit to be gained from something

thin (adjective)

a thin explanation, argument, statement etc does not have enough evidence or detail to be effective

toothless (adjective)

lacking the necessary power or force to be effective

unhelpful (adjective)

not useful

uninformative (adjective)

not giving enough information and therefore not helpful

unproven (adjective)

not proved to be useful, safe, or capable of doing something

unreliable (adjective)

things such as equipment or methods that are unreliable will not work without problems

unresponsive (adjective)

an unresponsive institution does not give people the help or service that they need

useless (adjective)

a part of your body or mind that is useless cannot be used because of an illness or injury

useless (adjective)

if someone is useless, they are not any help to you or are not capable of achieving anything

vain (adjective)

unsuccessful, or useless

what’s the good of/what good is (it) (doing) something? ()

used for saying that you do not think something will give you any benefit