Synonyms of contagious

contagious

adjective

kən-ˈtā-jəs 

1

as in infectious

capable of being passed by physical contact from one person to another

chicken pox, measles, German measles, and other contagious diseases

Synonyms & Similar Words

• infectious
• infective
• communicable
• transmissible
• catching
• transmittable
• pestilent

Antonyms & Near Antonyms

• noninfectious
• noncommunicable

2

as in spreading

exciting a similar feeling or reaction in others

the enthusiasm of the new club members was contagious

Synonyms & Similar Words

• infectious
• spreading
• epidemic
• catching
• tangible
• irresistible
• perceptible
• overwhelming
• overpowering
• palpable
• winning
• endearing
• inviting
• fetching
• disarming
• winsome

Example Sentences

Recent Examples of contagious

Measles is a highly contagious virus that can be fatal in one to three patients per 1,000 cases, data shows. — Angelica Stabile, FOXNews.com, 22 Sep. 2026

This sense of personal connection is contagious, flowing from the team to the guests. — Jess Hoffert, Midwest Living, 22 Sep. 2026

Measles is highly contagious and spreads through the air when people cough, sneeze, talk or breath. — Cameron Knight, Cincinnati Enquirer, 18 Sep. 2026

Measles is highly contagious and can spread through the air when an infected person breathes, coughs or sneezes, according to state health officials. — Adam Thompson, CBS News, 17 Sep. 2026

Phrases Containing contagious

• contagious disease