| intelligent(adjective, smart, bright, sharp, informal) |
| clever(adjective, cool, smooth, keen, sharp) |
| smart(adjective, understanding, cool, smooth, keen) |
| brilliant(adjective, cool, excellent, sharp, ability) |
| bright(adjective, cool, sharp, smart, significant) |
| intellectual(adjective, reasonable, ability, smart, bright) |
| sharp(adjective, understanding, cool, smooth, keen) |
| knowing(verb, adjective, understanding, smooth, knowledge) |
| knowledgeable(adjective, understanding, cool, knowledge, keen) |
| shrewd(adjective, good, understanding, smooth, keen) |
| quick-witted(adjective, cool, keen, sharp, smart) |
| astute(adjective, understanding, cool, smooth, keen) |
| well-rounded(smart, familiar, intelligent, brilliant, knowledgeable) |
| erudite(adjective, knowledge, experience, skill, intelligent) |
| rational(adjective, understanding, reasonable, keen, sharp) |
| sagacious(adjective, understanding, cool, smooth, keen) |
| scholarly(adjective, knowledge, smart, bright, experience) |
| wise(adjective, understanding, cool, smooth, reasonable) |
| keen(adjective, understanding, smooth, reasonable, sharp) |
| quick(adjective, understanding, cool, smooth, keen) |