witty

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Demonstrating wit in expression, especially in speech or writing; clever and humorous.
• adjective Characterized by or having the nature of wit; funny or jocular.
• adjective Entertainingly and strikingly clever or original in concept, design, or performance.

from The Century Dictionary.

• Possessed of wisdom or learning; wise; discreet; knowing; artful.
• Exhibiting intelligence or ingenuity; clever; skilfully devised.
• Possessed of wit; smartly or cleverly facetious; ready with strikingly novel, clever, shrewd, and amusing sayings, or with sharp repartee; brilliant, sparkling, and original in expressing amusing notions or ideas; hence, sometimes, sarcastic; satirical: of persons.
• Characterized by or pregnant with wit: as, a witty remark or repartee.

from the GNU version of the Collaborative International Dictionary of English.

• adjective obsolete Possessed of wit; knowing; wise; skillful; judicious; clever; cunning.
• adjective Especially, possessing wit or humor; good at repartee; droll; facetious; sometimes, sarcastic.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective obsolete Wise, having good judgement.
• adjective archaic Possessing a strong intellect or intellectual capacity; intelligent, skilful, ingenious.
• adjective Clever; amusingly ingenious.
• adjective Full of wit.
• adjective quick of mind; insightful; in possession of wits

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective combining clever conception and facetious expression