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infantile Synonyms

Another word for infantile

Choosing another word for infantile depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adjective (Context 1)

Exhibiting a lack of maturity in an older child or adult; childish and foolish.

Usage Example

"The committee quickly grew tired of his childish temper tantrums during the budget negotiations."

Strongest
childish
immature
juvenile
puerile
Strong
babyish
jejune

• adjective (Context 2)

Of, relating to, or affecting infants or the earliest stage of childhood.

Usage Example

"The pediatric clinic specializes in diagnosing and treating rare neonatal neurological disorders."

Strong
neonatal
Weak
pediatric

Opposites of infantile

The opposite of infantile shifts depending on context. Common opposites include:

mature
grown-up
adult
geriatric
sophisticated
senile
sensible
See all opposites of infantile

• Nearby Words

infant
infanthood
infanticide
infantile
infantilization
infantry
infantryman

Cite this Entry

Wordmom. (2026). Synonyms for Infantile. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/infantile
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