contagious.
Easily transmitted to others.
Meaning & usage
Easily transmitted to others.
Last year's flu strain was so contagious that everybody in town got sick!
Easily passed on to others.
contagious enthusiasm; infectious laughter
Wearing jeans was a contagious fad at that time.
Having a disease that can be transmitted to another person.
They were highly contagious, spreading bacteria to other people.
Contiguous.
Where this word comes from
From Old French contagieus, from Late Latin contagiosus, from contagio.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.