Definition of: astute

(ə·stt′, ə·styt′) adjective
Keen in discernment; acute; shrewd; sagacious, cunning. Also as·tu·cious (ə·st′shəs, ə·sty′-), as·tu′tious. [<L astutus <astus cunning]
—as·tute′ly adverb
—as·tute′ness noun Synonyms: acute, clear-sighted, crafty, cunning, discerning, discriminating, keen, knowing, penetrating, penetrative, perspicacious, sagacious, sharp, shrewd, subtile, subtle Acute suggests the sharpness of the needle's point; keen the sharpness of the cutting edge. The astute mind adds to acuteness and keenness an element of cunning or finesse. Knowing has often a slightly invidious sense. See ACUTE, INTELLIGENT, KNOWING. Antonyms: blind, dull, idiotic, imbecile, shallow, short-sighted, stolid, stupid, undiscerning, unintelligent.