infantile

1. 1.

   indicating a lack of maturity

   “childish tantrums”

   “infantile behavior”

   Synonymschildish

   Similarimmature
2. 2.

   of or relating to infants or infancy

   “infantile paralysis”
3. 3.

   being or befitting or characteristic of an infant

   “infantile games”

   Similaryoung

Questions about infantile

What does infantile mean?

infantile means "indicating a lack of maturity". That is the primary sense; the word has 3 in total, listed in full on this page.

How many syllables are in infantile?

infantile has 3 syllables: in-fa-ntile. The stress falls on "in". In IPA it is /ˈɪnfəntɪl/.

What is another word for infantile?

Close synonyms include childish. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is infantile a common word?

infantile is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.