Of, characterized by, or caused by an allergy: an allergic reaction to airborne pollen.
Having an allergy: allergic children; highly allergic to penicillin.
Informal Having a dislike; averse: allergic to work.
allergic al·ler·gic (ə-lûr'jĭk) adj.
Of, caused, or characterized by an allergy.
Having an allergy or exhibiting an allergic reaction to a substance.