unhealthy
un-health-y
adjective
Not conducive to good health; detrimental to health.
"Smoking is an unhealthy habit."
adjective
Harmful or dangerous.
"An unhealthy obsession with work."
adjective
In poor health; not well.
"She looked pale and unhealthy."
Thesaurus
Synonyms: unhealthful, insalubrious, unwholesome, caseous, puffy, cytomegalic, carbuncular, dehydrated, sore-eyed, asthmatic, rheumatic, wheezy
Antonyms: healthy