Words For Intelligence

adjective having or showing sharp powers of judgment; astute

• The shrewd businessman made a strategic investment that paid off handsomely.
• She's a shrewd negotiator who always gets the best deal.
• That guy is so shrewd, he always knows how to work the system.
• Her shrewd eyes missed nothing, taking in every detail of the situation.

noun a very intelligent person, especially one who is exceptionally skilled in academic pursuits

• The brainiac in our group always has the answer to the most difficult questions.
• My friend is such a brainiac when it comes to math.
• That brainiac over there knows everything about computers.
• She's a real brainiac when it comes to solving puzzles.