Synonyms of unhealthy in English:

unhealthy


See US English definition of unhealthy

See UK English definition of unhealthy

See Spanish definition of malsano

adjective

1‘she was leading a very unhealthy lifestyle’

SYNONYMS
harmful, detrimental, destructive, injurious, damaging, deleterious, ruinous, malign, noxious, poisonous, insalubrious, baleful
risky, dangerous, perilous

2‘he had a bony face and an unhealthy pallor’

SYNONYMS
ill-looking, ill, unwell, in poor health, ailing, sick, sickly, poorly, indisposed, unsound, unfit, weak, feeble, frail, delicate, debilitated, infirm, valetudinarian, washed out, run down, peaky, out of condition, out of shape, in poor condition, in poor shape

3‘he had an unhealthy obsession with drugs’

SYNONYMS
unwholesome, undesirable, morbid, macabre, ghoulish, twisted, warped, depraved, abnormal, unnatural
informal sick