immature

Plural: immatures

Adjective

• characteristic of a lack of maturity
  • "immature behavior"
• (used of living things especially persons) in an early period of life or development or growth
• not fully developed or mature; not ripe
• not yet mature
• (of birds) not yet having developed feathers

Adj

• Occurring before the proper time; untimely, premature (especially of death).
• Not fully formed or developed; not grown.
• Childish in behavior; juvenile.

Noun

• An individual not fully grown or developed; not yet mature.
• An immature member of a species.

Examples

• Playing IMMATURE would be a bold move, likely to provoke laughter from an opponent.
• The man was immature for throwing a tantrum.
• You're only young once, but you can be immature the rest of your life.

Synonyms

green, unfledged, unripe, unripened, young, babish, babyish, bairnish, childish, dootsie, hissy, immature, infantile, infantine, juvenile, kiddish, lactifluous, milky, puerile

Antonyms

fledged, mature, old, ripe

Related Words

immaturity, mature

Anagrams of immature