1. (a.) Not ripe; as, unripe fruit.

2. (a.) Developing too early; premature.

a bit previous a novice at a stranger to acerb acerbate acerbic acescent adolescent advanced at half cock awkward blankminded budding callow crab crabbed dewy dry dumb empty empty-headed far ahead fledgling forward fresh gauche green green as grass groping growing half-baked half-cocked half-grown hasty ignorant ill-considered ill-digested ill-seasoned ill-timed immature improper impubic impulsive inane inappropriate inauspicious inconvenient inexpedient inexperienced infant infelicitous ingenuous innocent inopportune intact intempestive intrusive irrelevant juicy juvenile know-nothing late mal a propos malapropos minor mistimed naive nescient new to new-fledged not firm off base out of line out of phase out of time overhasty oversoon pickled precipitate precocious premature previous pungent raw ripening rushed sappy sec simple sour sour as vinegar soured sourish strange to tart tartish tender tentative too early too late too soon unaccustomed to unacquainted unacquainted with unadult unapprized unbefitting uncomprehending unconversant unconversant with uncrystallized underage underripe undeveloped unenlightened unexperienced unfamiliar unfamiliar with unfavorable unfit unfitting unfledged unformed unfortunate ungrown unhandy unhappy unilluminated uninformed uninitiated uninitiated in unintelligent unjelled unknowing unlicked unlucky unmatured unmeditated unmellowed unposted unpracticed unpracticed in unpremeditated unprepared unpropitious unready unseasonable unseasoned unskilled in unsuitable unsure unsweet unsweetened untimely untoward untried unused to unversed unversed in vacuous vernal vinegarish vinegary virginal wrong youthful