ENGLISH
REFERENCE

allergic

adj.
B1 Intermediate US //əˈɫɝdʒɪk// UK //ɐlˈɜːdʒɪk// al·ler·gic Humorous

adj. having a bad reaction to a food, animal, or substance. You can also use it to say you really dislike something.

adj. having a medical hypersensitivity to a substance that causes a physical reaction. Often used figuratively to express a strong aversion or dislike.


SIMPLE

I am allergic to cats, so I can't visit your house.

CONTEXTUAL

The restaurant staff must be careful because some customers are severely allergic to peanuts and shellfish.

COMPLEX

While the patient is medically allergic to penicillin, he also claims to be allergic to hard work, much to the amusement of the nursing staff.

Synonyms
Origin

From allergy + -ic.

Usage

Typically followed by the preposition 'to'.

Pitfall

I have allergic to nutsI am allergic to nutsLearners often confuse the adjective 'allergic' with the noun 'allergy'.

© 2026 English Reference