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immature meaning and examples

2025-09-07

Meaning

  • Immature means not fully developed, either physically, mentally, or emotionally.
  • It can describe a person who behaves in a childish or irresponsible way, or something that has not yet reached full growth or ripeness.

Grammar and Usage

  • Part of speech: Adjective

  • Used to describe people, behavior, emotions, or physical development.

  • Typical structure:

    • immature + noun (immature child, immature behavior, immature fruit)
    • be + immature (He is immature.)

Common Phrases

  • Immature behavior
  • Immature reaction
  • Immature personality
  • Immature fruit
  • Emotionally immature

Collocations

  • Verb + immature: seem immature, act immature, behave immaturely
  • Noun + immature: immature attitude, immature decision, immature plant
  • Adverb + immature: emotionally immature, socially immature

Examples

  1. His jokes are funny to some people, but others find them immature.
  2. She is too immature to take on such a big responsibility.
  3. The fruit is still immature and not ready to eat.
  4. He reacted in an immature way, shouting instead of solving the problem calmly.
  5. Many teenagers can be emotionally immature, but they grow with experience.
  6. The plan was rejected because it was considered immature and unrealistic.
  7. Don’t act so immature—you need to be serious in this situation.
  • Childish
  • Juvenile
  • Inexperienced
  • Naive
  • Underdeveloped

Antonym

  • Mature
  • Adult
  • Developed
  • Responsible