Infectious

Pronunciation: /ˌɪnˈfɛkʃəs/

Infectious (adjective)

  1. Able to spread quickly from one person or thing to another.
  2. Causing others to feel the same emotion, like laughter or excitement.

Examples

  • The disease is highly infectious and spreads rapidly.
  • Infectious diseases can be controlled with proper hygiene.

Common collocations: infectious disease, highly infectious, infectious agent, infectious laughter, infectious enthusiasm

Synonyms of Infectious

Formal

Neutral

Informal

Antonyms of Infectious

  • describing diseases that do not spread
  • describing environments free from germs