CEFR C1

infantile

adjective

Meaning

Lacking the maturity, seriousness, or good sense expected of an adult; childish.

Examples

He had an infantile reaction to the criticism, bursting into tears.
Her boss found her infantile jokes inappropriate for the workplace.

Synonyms: childish, immature, puerile, juvenile

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infantile (C1)

adjective

Pronunciation: /ˈɪnfəntəl/

Definition

Lacking the maturity, seriousness, or good sense expected of an adult; childish.

Examples

He had an infantile reaction to the criticism, bursting into tears.
Her boss found her infantile jokes inappropriate for the workplace.
The politician's infantile behavior on the debate stage shocked viewers.

How to Use infantile

infantile behavior (collocation): Actions or conduct typical of a child, not an adult. — "His infantile behavior at the meeting made it difficult to conduct business."
infantile paralysis (collocation): An older, now disused, term for poliomyelitis. — "The vaccine effectively eradicated infantile paralysis worldwide."

Synonyms of infantile

Words with a similar meaning to infantile:

Antonyms of infantile

Words with the opposite meaning to infantile:

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