say it: uhn-HELTH-fuhl
unhealthful is an adjective meaning "not sanitary or healthful". It carries 3 recorded senses.
not sanitary or healthful
“unsanitary open sewers”
“grim and unsanitary conditions”
detrimental to good health
“unhealthful air pollution”
“unhealthful conditions in old apartments with peeling lead-based paint”
detrimental to health
Definitions, synonyms and semantic relations for unhealthful come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.