Word Study
unhealthful
OXFORD DICTIONARY
unhealthful, adj. harmful to health, unwholesome.
Derivative
unhealthfulness n.
THESAURUS
unhealthful
bad, bad for, contaminated, foul, harmful, injurious, insalubrious, insanitary, morbific, noisome, noxious, pathogenic, peccant, pestiferous, polluted, septic, sickly, tainted, unhealthy, unhygienic, unsanitary, unwholesomeFor further exploring for "unhealthful" in Webster Dictionary Online