Immature, undeveloped. Of a thing, esp. something immaterial, such as a thought, plan, etc.: not fully developed or elaborated.

Unripe; immature. Chiefly figurative. Obsolete.

Undigested; crude, immature; shapeless, confused; unarranged.

Not (yet) matured; immature; unripe.

Of a person, state, intention, etc.: not fully developed, not yet mature.

Not properly matured; unseasoned. Obsolete. rare.

= unbuilt, adj.

Just begun, incipient; in an initial or early stage; hence elementary, imperfect, undeveloped, immature.

Not ripened; unripe.

Undeveloped, rude, primitive. Obsolete.

Not made mellow (in various senses).

figurative and in figurative context. Obsolete.

Of flowers: Unopened; still in the bud.

Not yet grown up or fully grown; immature.

Not refined or elegant in manners or conduct; not civilized or cultured.

= rudimentary, adj. 1.

Of an undeveloped or primitive character; rudimentary.

figurative. (See quots.)

Not matured by growth or time. Also in figurative context.

Not carefully or skilfully finished or formed; unpolished; crude, rough.

Immature, unformed, undeveloped; that is an embryo, embryonic. Cf. embryo, adj.

figurative. Left in an unfinished or immature state.

= unblown, adj.2

Of things: Not fully developed; still in a crude or imperfect state.

Not mellow (in various senses).

figurative in various applications. Immature, unseasoned. Obsolete.

Of or relating to an embryo; embryonic. Also figurative.

figurative. Not properly worked up or elaborated.

Of dough, clay, etc.: that has not been kneaded; (figurative) not fully prepared or ready; immature; undeveloped. Also (of bread): prepared…

Of an immaterial thing: not fully formed or perfected; recent, new; incomplete.

figurative. Not come to maturity; not fully developed; budding.

Not properly filled out or developed. Obsolete. rare.

Not yet fully developed or formed; embryonic; immature; incipient. See also compounds 1.

(un-, prefix1 affix 1.)

= unmatured, adj.

transferred. Of immaterial things: Not brought to a definite or properly developed state; crude.

That has not developed or been developed.

Of the character of an infant; infant-like.

Not attended to or practised; not properly trained or developed.

(un-, prefix1 affix 2.)

In figurative contexts and figurative. Cf. embryonic, adj. 2.

figurative. = embryonic, adj. 2.

figurative and in extended use. That is at an early stage of development; rudimentary; incipient.

= embryonic, adj.

Of or pertaining to, befitting or resembling, characteristic of, a sophomore; hence, pretentious, bombastic, inflated in style or manner…

Having the nature of a small seed; existing in a rudimentary state; nascent.

Of the nature of an early stage of development or growth; undeveloped, immature, imperfect. Of a state or condition.

Not developed or worked out.

Immature, undeveloped.

figurative. Imperfectly developed; immature; characterized by youthful immaturity.

Incompletely developed, in various senses of the verb.