28 immature synonyms include unripe, not ripe, not mature, not matured, unmellowed, undeveloped, unformed, imperfect, unfinished, and incomplete. Immature is an adjective, and its antonyms are ripe and mature. Here are some additional synonyms for "immature" with example sentences.
28 other ways to say immature.
His behavior was immature during the meeting.
immature jokes are common among teenagers.
She felt the decision was immature and rushed.
The plant looks healthy but is still immature.