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immature

immature

108 3.5
Behaving like a child in a way that shows little emotional growth
  • adjective
  • /ˌɪməˈtʃʊr/
translation icon : inmaduro
  • His reaction to criticism was immature and childish.
  • immature behavior
  • immature children

Or you're just too immature to make a relationship work.

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Examples

  • In other school districts, slow learners are promoted to first grade, while bright but immature children are retained.

    Academic text (1999)
  • I was homesick, emotionally immature, troubled by visions of a hidden universe.

  • Jesus, dude, how immature can this guy be?

  • I think that this James Charles is very immature, OK?

  • But again, I was just an immature kid.

  • We just get more immature when we're older.

  • That is a very immature response.

  • Why are you being so immature about all this?

  • You're being really immature about this.

  • I was immature, inexperienced, maybe a bit naive.

Synonyms

childish
vsimmature
141 2.8

Acting like a child instead of like an adult

is broader, applying to any person who lacks emotional or mental maturity
juvenile
vsimmature
61 4.2

Acting in an immature or childish way

is more about emotional and mental underdevelopment than neutral general description
adolescent
vsimmature
24 4.4

Showing immature or childish behavior

is focused on emotional and mental underdevelopment rather than only attitude
infantile
vsimmature
21 6.5

Acting like a young child in a silly or immature way

is milder and denotes less severe emotional or mental underdevelopment
babyish
vsimmature
3 3.0

Acting or speaking like a baby and seeming childish

is a general term for lacking emotional or mental development rather than baby traits
kiddish
vsimmature
  • Archaic
7.5

Acting like a child in a simple, not serious way

focuses on lack of emotional and mental development rather than simple naivety

Antonyms

199 3.3

Behaving like an adult and thinking sensibly

How Mature

mature
199 3.3
immature
108 3.5
childish
141 2.8

Surface Forms

immature positive
immaturer comparative
immaturest superlative

Morphology

immature = mature (transparent) = im + mature

The word is formed by negating 'mature' with the productive negative prefix 'im-', producing the sense 'not mature' as applied to behaviour or attitude.

Etymology

Immature comes from the parts im- 'not' and mature 'fully grown'. So when we call a person immature we mean their behavior or feelings are not fully developed and they may act childlike instead of like an adult.