Acute or penetrating in intellect or perception. Of persons or their faculties: †(a) Intellectually acute, keen witted, discerning, sagacious (obs…

Prudent, wise, sagacious, shrewd, astute.

Of a person: quick, prompt, ready; intelligent, clever. In later use archaic and English regional.

quick-witted.

Shrewd; clever, cunning.

Clever, cunning; shrewd, astute; nimble, active: = yepe, adj. 1.

Possessing insight or understanding; perceptive, discerning; (originally) spec. that is a seer or prophet (now rare).

scheming, shrewd.

Keen-sighted; clever. Now dialect.

That perceives or is capable of perceiving. Formerly also: †discerning, acute, wise.

Keen-witted, clever, sharp, acute, smart.

Of a person: prudent, shrewd, sagacious.

Of a person: mentally alert or agile; prompt to learn, think, or understand; intelligent; of ready wit.

Of a person or the mind: full of ideas; imaginative, inventive; resourceful; (of wit) quick, sharp. Now rare.

Quick to see and act, sharp; clever; quick-witted; adroit. Now rare (regional in later use).

Having a quick or ready wit; quick to grasp, or react to, a situation; mentally acute, sharp, clever.

Susceptible to impressions; ready to learn; intelligent, quick-witted, prompt. In modern use with at.

Having a high degree or good measure of understanding; quick to understand; knowing, sagacious.

Of a person. Skilled, clever, sharp. Obsolete. rare.

Of a ready wit or intelligence; quick of apprehension. Frequently in predicative use. Cf. quick-witted, adj.

= politic, adj. 2. Obsolete.

of (a) great, deep,etc., reach: of great, deep, etc., knowledge or power of comprehension. Obsolete.

Witty, amusing; employing or characterized by conceits (conceit, n. 10b). Now rare.

Discerning; penetrating; acute; = perspicacious, adj. 2.

Sagacious, intelligent.

Of action, speech: †Cunning, artful (obsolete); characterized by penetration or practical sagacity.

Having or showing insight; insightful, perceptive.

Witty, ingenious; = conceited, adj. 1c. Obsolete. rare.

Of the intellect or a product of it: having subtle or quick discernment; penetrating, keen, sharp-witted, shrewd, clever. Opposed to dull, stupid, o…

= pregnant, adj.1 (in various senses).

Of a person, the mind, etc.: able to think, understand, and react quickly; alert, astute, quick-witted; (also) characterized by quick-wittedness.

Having insight: endowed with insight.

Of a person: quick-witted, clever, acute.

Quick-witted; having a sharp mind.

figurative. Chiefly literary. Having or showing mental penetration or insight; acute, subtle; = penetrating, adj. 3.

Having or showing insight or percipience; acute, discerning.

Smart, clever.

Distinguished by acumen; acute, shrewd.

Passing rapidly from one thought to another; quick-witted; mercurial. Obsolete.

Of a person: clever in talk or argument; capable of making witty remarks, quick-witted; adept at repartee.

Having the power of mental penetration or insight; intellectually acute. Also, of the eyes, a person's gaze, etc.: intense, searching; able to see…

Gifted with acuteness of mental discernment; having special aptitude for the discovery of truth; penetrating and judicious in the estimation of…

Having a keen critical faculty; sagacious. Obsolete.

Having or showing acumen. rare.

sharp but not pointed with malice.

That has or shows great foresight or judgement; discerning, shrewd; intelligent, thoughtful. Frequently Scottish and Irish English in later use.

Quick to suspect or take note; shrewd, sharp, suspicious. Obsolete.

Quick in action or discourse; (also) quick in understanding; keen, sharp, vigorous.

Of persons: Intellectually acute, sharpwitted, shrewd: often with mixture of sense A. 6. Also of the mind or mental operations: Endowed or conducted…

Sagacious, wise; shrewd. Now rare.

Quick, alert, clever, smart.

Acute, clever, keen-witted, sharp, shrewd.

Of a person's mind, imagination, temperament, etc.: likely to change or display different aspects; shifting; versatile; (also) lacking focus…

figurative. colloquial. Thoroughly vigilant or on the alert; fully aware of what is going on, or of what it is best to do; intellectually keen…

Of the intellectual, discernment, etc.: sharpened, made keen; (of attention, feeling, etc.) acutely concentrated. Now rare.

having a quick or ready mind; quick-witted.

(See quot. 1808.) Also, clever, lively; provoking, teasing, annoying. Scottish.

Quick; smart; sharp.

Aware, alert, savvy; cunning, crafty.

Clever, acute, sharp.

(un-, prefix1 affix 1.)

Knowing, clever, cunning.

as sharp as a needle; figurative acute, quick-witted.

figurative. Sharp or keen in mental qualities; producing a highly clear and impressive mental effect; penetrating, acute, trenchant.

Alert, clever.

Of a person or the mind: quick to understand, learn, and think; intelligent, clever. Cf. slow, adj. 2.

colloquial. Cleverly smart, bright, or pointed (of language, etc.); full of ‘go’; brisk.

Of a person: hard-headed, shrewd, esp. in a ruthless, unsentimental manner; hardened, callous; tough and cynical. Also of a place: full of or…

Of a person: quick-witted, alert, sharp.