Adjective has 3 senses

• unhealthful(a = adj.all) insanitary, unsanitary - not sanitary or healthful; "grim and unsanitary conditions"; "unsanitary open sewers"

Derived form noun unhealthfulness₁

• unhealthful(a = adj.all) - detrimental to good health; "unhealthful air pollution"; "unhealthful conditions in old apartments with peeling lead-based paint"


Antonym: healthful
Derived form noun unhealthfulness₁

• unhealthful(s = adj.all) insalubrious, unhealthy - detrimental to health;

Derived form noun unhealthfulness₁