Definitions for unhealthfulʌnˈhɛlθ fəl
Random House Webster's College Dictionary
not conducive to good health; unwholesome.
Category: Common Vocabulary
Origin of unhealthful:
unsanitary, insanitary, unhealthful(adj)
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"
insalubrious, unhealthful, unhealthy(adj)
detrimental to health
Not healthy; detrimental to health.
An unhealthful diet and lack of exercise are common causes for heart disease.