allergic

adjective

al·​ler·​gic ə-ˈlər-jik 

1

: of, relating to, affected with, or caused by allergy

2

: having an aversion

allergic to work

Synonyms of allergic

• afraid
• reluctant
• opposed
• opposing
• averse

Examples of allergic in a Sentence

a lover of the outdoors who claims to be allergic to desk jobs

Recent Examples on the Web

Hay fever is defined as cold-like symptoms caused by an allergic response to a harmless outdoor and indoor substance the body identifies as harmful, according to the Mayo Clinic. — Ron Smiley, CBS News, 25 Aug. 2026

The law was written to ensure a child can quickly access lifesaving medicine during an asthma attack or severe allergic reaction. — Gabby Sartori, USA Today, 20 Aug. 2026

With contact dermatitis, a product like a soap or chemical irritates the skin or causes an allergic reaction, leading to symptoms like itching, discoloration, swelling, or even blisters. — Ayren Jackson-Cannady, Allure, 20 Aug. 2026

Although the supplements are generally well tolerated, people who are pregnant or breastfeeding, are allergic to ferns, or are taking other medications—particularly immune-modulating ones—may not be good candidates, Nazarian said. — Kristen Fischer, HEALTH, 18 Aug. 2026

Word History

Etymology

allergy + -ic entry 1, after German allergisch

Note: See note at allergy.

First Known Use

1908, in the meaning defined at sense 1

Phrases Containing allergic

• allergic rhinitis
• anti-allergic

Rhymes for allergic

• glutamatergic

Kids Definition

allergic

adjective

al·​ler·​gic ə-ˈlər-jik 

1

: of, relating to, affected with, or caused by allergy

an allergic reaction

2

: having a dislike for something

allergic to hard work

Medical Definition

allergic

adjective

al·​ler·​gic ə-ˈlər-jik 

1

: of, relating to, or characterized by allergy

an allergic reaction

allergic diseases

2

: affected with allergy : subject to an allergic reaction

he is allergic to pollen

allergically

ə-ˈlər-ji-k(ə-)lē

adverb

The body reacts allergically, the skin reddening and breaking out in tiny blisters.

—Paul G. Donohue, The Springfield (Massachusetts) Union-News