Synonyms of adverse in English:

adverse


See definition of adverse

adjective

1‘the plane crashed into a lake in adverse weather conditions’

SYNONYMS

unfavourable, disadvantageous, inauspicious, unpropitious, unfortunate, unlucky, untimely, untoward

disagreeable, unpleasant, bad, poor, terrible, dreadful, dire, wretched, nasty, hostile

ANTONYMS

favourable

2‘the company knew of the drug's adverse side effects’

SYNONYMS

harmful, dangerous, injurious, detrimental, hurtful, deleterious, destructive, pernicious, disadvantageous, unfavourable, unfortunate, unhealthy

ANTONYMS

beneficial

3‘the military feared an adverse response from the American public’

SYNONYMS

hostile, unfavourable, antagonistic, unfriendly, ill-disposed, negative, opposing, opposed, contrary, dissenting, inimical, antipathetic, at odds

ANTONYMS

positive, friendly