| intelligent |
| inventive(adjective, smart, bright, rational, intelligent) |
| astute(adjective, smart, bright, brainy) |
| gifted(smart, bright, brainy) |
| highbrow(adjective, smart, bright, rational, intelligent) |
| acute(adjective, smart, bright, brainy) |
| alert(adjective, smart, bright, brainy) |
| alive(adjective, smart, bright, brainy) |
| all there(expression, smart, bright, brainy) |
| apt(adjective, smart, bright, brainy) |
| bookish(rational, intelligent, thoughtful, knowledgeable) |
| brainy(adjective, smart, bright, rational, intelligent) |
| bright(adjective, smart, brainy) |
| brilliant(adjective, smart, bright, brainy) |
| calculating(adjective, smart, bright, brainy) |
| capable(adjective, smart, bright, brainy) |
| cerebral(adjective, rational, intelligent, thoughtful, knowledgeable) |
| comprehending(adjective, smart, bright, brainy) |
| deep(adjective, smart, bright, brainy) |
| discerning(adjective, smart, bright, brainy) |