| clever(adjective, smart, keen, bright, sharp) |
| smart(adjective, keen, bright, machine, characteristic) |
| sharp(adjective, bright, smart, perceptive, keen) |
| wise(adjective, bright, reasonable, smart, sharp) |
| bright(adjective, smart, keen, sharp, lively) |
| astute(adjective, keen, perceptive, smart, sharp) |
| quick-witted(adjective, smart, bright, keen, sharp) |
| shrewd(adjective, keen, bright, sharp, smart) |
| brilliant(adjective, smart, bright, keen, characteristic) |
| quick(adjective, bright, smart, sharp, lively) |
| discerning(adjective, keen, smart, reasonable, sharp) |
| brainy(adjective, smart, bright, informal, sharp) |
| perceptive(adjective, smart, keen, sharp, bright) |
| alert(adjective, smart, attentive, sharp, bright) |
| sensible(adjective, reasonable, rational, sharp, smart) |
| rational(adjective, reasonable, smart, sensible, sober) |
| perspicacious(adjective, smart, keen, sharp, wise) |
| reasonable(adjective, rational, sensible, sound, smart) |
| sagacious(adjective, smart, reasonable, keen, sharp) |
| keen(adjective, smart, sharp, perceptive, clever) |