Meaning & Definition of word "Immature"

Immature

/ˌɪməˈtjʊr/

adjective:

  • 1. Not fully developed or grown; lacking maturity.
    • Example: His immature attitude toward responsibility led to many missed deadlines.
  • 2. Behaving in a childish or naive manner.
    • Example: She found his immature jokes quite annoying at such a serious event.
  • 3. In the early stages of development or growth.
    • Example: The immature plants need extra care to survive the winter.

Etymology

Late Latin 'immaturus', from 'in-' meaning 'not' + 'maturus' meaning 'ripe, mature'.

Common Phrases and Expressions

immature behavior:

Exhibiting childish or unrefined conduct.

immature attitude:

Displaying a mindset that lacks sophistication.

immature jokes:

Humor that is simplistic or appeals to a younger audience.

Related Words

mature:

Fully developed or grown.

adolescent:

In the stage of development between childhood and adulthood.

juvenile:

Relating to young people; immature.

Slang Meanings of immature

Meaning: Acting like a child.

Example Sentence: Stop being so childish; you're acting immature.

Meaning: Throwing a fit.

Example Sentence: He threw a fit when things didn't go his way; so immature!