Thesaurus
To save this word, you'll need to log in.
Synonyms of infectious
exciting a similar feeling or reaction in others
- an infectious giggle that got the whole class laughing
Synonyms for infectious
Words Related to infectious
Keep scrolling for more
Learn More about infectious
Thesaurus Entries near infectious
See More Nearby EntriesCite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 12 Aug. 2020.
Keep scrolling for more
Comments on infectious
What made you want to look up infectious? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Original Meanings Quiz
- Which of the following is the earliest known sense of the word awe?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Share infectious
Time Traveler for infectious
The first known use of infectious was in 1534
See more words from the same year