undesirable
[adjective]
Synonyms: objectionable, disagreeable, distasteful, unacceptable, unattractive, unsuitable, unwanted, unwelcome

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Antonyms: desirable

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English Thesaurus: bad, poor, not very good, disappointing, negative, ...

[TahlilGaran] English Synonym Dictionary ▲

I. un‧de‧sir‧a‧ble¹ /ˌʌndɪˈzaɪərəbəl◂ $ -ˈzaɪr-/ adjective formal
[Word Family: noun: desirability, desire; adjective: desirable ≠ undesirable, desired ≠ UNDESIRED; verb: desire; adverb: desirably]
something or someone that is undesirable is not welcome or wanted because they may affect a situation or person in a bad way
undesirable effects/consequences etc
The drug may have other undesirable effects.
punishment of undesirable behaviour

[TahlilGaran] Dictionary of Contemporary English ▲

II. undesirable² noun [countable usually plural]
someone who is considered to be immoral, criminal, or socially unacceptable:
security measures to keep out undesirables

[TahlilGaran] Dictionary of Contemporary English ▲

undesirable
adj.
VERBS be, seem | make sth | consider sth, deem sth, regard sth as, see sth as
ADV. extremely, highly, very a situation which is highly undesirable
totally | clearly, obviously It is clearly undesirable for the issue to be ignored.
economically, politically, socially It was felt that the ageing of society was socially and economically undesirable.

[TahlilGaran] Collocations Dictionary ▲

bad not good:
a bad idea
His behaviour is getting worse.
poor not as good as it could be or should be:
A poor diet can lead to ill health.
his poor performance at school
not very good not good – often used instead of saying directly that something was ‘bad’, especially when you were disappointed by it:
The film wasn’t very good.
disappointing not as good as you hoped or expected:
Her exam results were disappointing.
a disappointing start to the campaign
negative bad – used when talking about the bad result or effect of something:
All the publicity had a negative impact on sales.
the negative effects of climate change
undesirable formal bad and not wanted:
The policy had some undesirable consequences.
drug abuse and other undesirable behaviour
unfavourable formal unfavourable conditions are not good for doing something:
The boat race was cancelled because of unfavourable weather.
awful/terrible/dreadful especially British English very bad:
The movie was awful.
Her house is in a terrible state.
a dreadful crime
horrible very bad, especially in a way that shocks or upsets you:
He describes prison as ‘a horrible place’.
It was a horrible exprerience.
disgusting smelling or tasting very bad:
The food was disgusting.
The fish smelled disgusting.
lousy /ˈlaʊzi/ informal very bad or disappointing:
The weather has been lousy all week.
I’m fed up with this lousy job.
ghastly /ˈɡɑːstli $ ˈɡæstli/ British English informal very bad:
I’ve had a ghastly day.
a ghastly mistake
severe severe problems, injuries, illnesses etc are very bad and serious:
The country faces severe economic problems.
severe delays
He suffered severe head injuries in a car crash.
atrocious/appalling/horrendous extremely bad in a way that is shocking:
Her behaviour has been absolutely atrocious.
The country has an appalling human rights record.
abysmal /əˈbɪzməl/ very bad and of a very low standard:
The team’s performance was abysmal.
the abysmal conditions in some prisons

[TahlilGaran] English Thesaurus ▲