Shrewd(adjective)
Having or showing sharp powers of judgment; astute or clever in practical matters. (????? / ?????? / ????????)
Synonyms: Astute, Clever, Canny, Perceptive
Antonyms: Naive, Foolish, Inept, Gullible
Example: The shrewd businessman quickly identified the best investment opportunity.
Trick to remember: Shrewd aadmi har situation ko “smartly shrew kar” nikal leta hai — matlab hamesha samajhdari se kaam leta hai. 
