immature

• Qualifie une personne ou une chose qui n'est pas complètement développée ou arrivée à maturité ; s'emploie souvent pour décrire un comportement puéril ou infantile.

Describes someone or something that is not fully developed or grown; often used to describe childish behavior.

1. Lacking emotional or mental growthA2formal

   Acting in a way that is not typical of an adult, especially with childish behavior or lack of responsibility.

   immature (manque de maturité affective ou mentale)

   • His immature reaction surprised everyone.
   • She made an immature comment about the situation.
   • Crying over a spilled drink seems immature.

   Synonymesbabyishchildishinfantilejuvenilepuerile

   Antonymesadultgrownupmature

2. Early stage of life or developmentB1formal

   Referring to the early period of growth or development in a living thing, before full adulthood.

   Jeune, pas encore adulte

   • The immature plants need extra care.
   • These cells are still immature and will divide.
   • Immature animals rely on their parents for food.

   Synonymesadolescentbuddingembryonicgreeninfantjuvenileundevelopedunripeyoung

   Antonymesadultdevelopedfull-grownmature

3. Not fully developed or ripeB1formal

   Not yet complete in growth; not ready for use or consumption.

   Non mûr ou pas encore développé

   • The fruit is still immature and tastes sour.
   • Immature wood is weaker than aged timber.
   • The decision was based on immature analysis.

   Synonymesembryonicgreenjuvenilenascentprematureundevelopedunripeyoung

   Antonymesadultdevelopedgrownmatureripe

4. Not yet mature (general)B1formal

   Describing something that has not yet reached its full size, strength, or capacity.

   pas encore mature

   • The immature bird cannot fly yet.
   • Our plans are still immature and need refinement.
   • Immature ideas often evolve over time.

   Synonymescallowgreenjuvenileundevelopedunfledgedunripeyoung

   Antonymesadultdevelopedfull-grownmatureripe

5. Of birds: without feathersC1formalscientific

   Describing a young bird that has not yet grown its feathers.

   Oiseau sans plumes

   • The nest held three immature chicks.
   • Immature birds often have fluffy down.
   • Ornithologists studied the immature plumage.

   Synonymescallowfeatherlessunfeatheredunfledged

   Antonymesfeatheredfledged