immature

adjective ee-mah-TUR Rare

Usage Note

Immature is a direct cognate of English 'immature' and is used in both emotional and biological contexts. It is invariable in spelling for masculine and feminine singular (un garçon immature, une réaction immature). The noun form is l'immaturité ('immaturity').

Examples

"Son comportement est vraiment immature."

Natural Translation

His behaviour is really immature.

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