a. [ L. 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.” Bacon. [ 1913 Webster ]
2. Premature; untimely; too early; as, an immature death. [ R. ] Jer. Taylor. [ 1913 Webster ]