Immature
Immature , adjective
[Latin immaturus; pref. im- not + maturus mature, ripe. See Mature.]
1.
Not mature; unripe; not arrived at perfection of full development; crude; unfinished; as, immature fruit; immature character; immature plans.
An ill-measured and immature counsel.
2.
Premature; untimely; too early; as, an immature death. [Rare] — Jer. Taylor