Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

infantile

adjective

Synonyms and Antonyms of infantile

  1. having or showing the annoying qualities (as silliness) associated with children <the infantile humor that teenage boys are justly famous for> Synonyms adolescent, babyish, immature, childish, jejune, juvenile, kiddish, puerileRelated Words boyish, brattish, bratty, girlie (or girly), girlish; childlike, innocent, naive (or naïve), simple, simplistic, unsophisticatedNear Antonyms unchildlike; cosmopolitan, experienced, knowing, smart, sophisticated, worldly, worldly-wiseAntonyms adult, grown-up, mature





Seen and Heard

What made you want to look up infantile? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to expose to danger or risk

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ