9 letters · 14 points in Scrabble
adjective having keenness and forcefulness and penetration in thought, expression, or intellect
adjective characterized by or full of force and vigor
adjective clearly or sharply defined to the mind
originBorrowed into Middle English from Old French trenchant, the present participle of trenchier (“to cut”).
Etymology from Wiktionary, CC BY-SA 3.0