Defn: One who composes and sings or recites rhymes and short poems extemporaneously. [Written also improvisatore.]

IMPROVVISATRICE
Im`prov*vi`sa*tri"ce, n.; pl. Improvvisatrici. Etym: [It. See
Improvise.]

Defn: A female improvvisatore. [Written also improvisatrice.]

IMPRUDENCE
Im*pru"dence, n. Etym: [L. imprudentia: cf. F. imprudence. Cf.
Improvidence.]

Defn: The quality or state of being imprudent; want to caution, circumspection, or a due regard to consequences; indiscretion; inconsideration; reshness; also, an imprudent act; as, he was guilty of an imprudence. His serenity was interrupted, perhaps, by his own imprudence. Mickle.

IMPRUDENT Im*pru"dent, a. Etym: [L. imprudens; pref. im- not + prudens prudent: cf. F. imprudent. See Prudent, and cf. Improvident.]

Defn: Not prudent; wanting in prudence or discretion; indiscreet; injudicious; not attentive to consequence; improper. — Im*pru"dent*ly, adv. Her majesty took a great dislike at the imprudent behavior of many of the ministers and readers. Strype.

Syn. — Indiscreet; injudicious; incautious; ill-advised; unwise; heedless; careless; rash; negligent.

IMPUBERAL
Im*pu"ber*al, a.

Defn: Not having arrived at puberty; immature. In impuberal animals the cerebellum is, in proportion to the brain proper, greatly less than in adults. Sir W. Hamilton.