immature

Common intensifier for immaturity.

Indicates a very high degree of immaturity.

Lacking emotional maturity; reacting to situations in a childish way.

Indicates a small degree of immaturity.

Indicates a small degree of immaturity, often more formal than 'a little'.

Not fully developed or grown in a physical sense.

Indicates a moderate or significant degree of immaturity.

Not yet having reached sexual maturity.

Immature in terms of normal cognitive or physical development.

Lacking sophistication or experience in political matters.

Used to state the quality of being immature as a fact or condition.

Used to describe the appearance or impression of being immature.

Used when what someone says gives the impression of being immature.