adjective
infantile
IHN-fuhn-tyl
adjective
1
Relating to infants or early childhood.
"The doctor checked for signs of infantile illness."
2
Childish and immature in a way that's inappropriate for an adult.
"His infantile behaviour at the meeting embarrassed the whole team."
How to Use Infantile
Learner’s notesIn plain EnglishBaby-like — either literally about infants, or used as an insult for grown-up behaviour that's silly and immature.
Common pairings
infantile behaviour
infantile tantrum
Word Forms
more infantile comparative, most infantile superlative
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Etymology
From Latin infantilis, "pertaining to an infant," from īnfāns.