The Collaborative International Dictionary of English v.0.48:
Rude \Rude\, a. [Compar. Ruder; superl. Rudest.] [F., fr. L.
1. Characterized by roughness; umpolished; raw; lacking
delicacy or refinement; coarse.
Such gardening tools as art, yet rude, . . . had
2. Hence, specifically:
(a) Unformed by taste or skill; not nicely finished; not
smoothed or polished; -- said especially of material
things; as, rude workmanship. "Rude was the cloth."
Rude and unpolished stones. --Bp.
The heaven-born child
All meanly wrapt in the rude manger lies.
(b) Of untaught manners; unpolished; of low rank; uncivil;
clownish; ignorant; raw; unskillful; -- said of
persons, or of conduct, skill, and the like. "Mine
ancestors were rude." --Chaucer.
He was but rude in the profession of arms. --Sir
the rude forefathers of the hamlet sleep.
(c) Violent; tumultuous; boisterous; inclement; harsh;
severe; -- said of the weather, of storms, and the
like; as, the rude winter.
[Clouds] pushed with winds, rude in their shock.
The rude agitation [of water] breaks it into
(d) Barbarous; fierce; bloody; impetuous; -- said of war,
conflict, and the like; as, the rude shock of armies.
(e) Not finished or complete; inelegant; lacking
chasteness or elegance; not in good taste;
unsatisfactory in mode of treatment; -- said of
literature, language, style, and the like. "The rude
Irish books." --Spenser.
Rude am I in my speech. --Shak.
Unblemished by my rude translation. --Dryden.
Syn: Impertinent; rough; uneven; shapeless; unfashioned;
rugged; artless; unpolished; uncouth; inelegant; rustic;
coarse; vulgar; clownish; raw; unskillful; untaught;
illiterate; ignorant; uncivil; impolite; saucy;
impudent; insolent; surly; currish; churlish; brutal;
uncivilized; barbarous; savage; violent; fierce;
tumultuous; turbulent; impetuous; boisterous; harsh;
inclement; severe. See Impertiment.
[1913 Webster] -- Rude"ly, adv. -- Rude"ness, n.