| astute(adjective, sharpened, whetted, sharp-edged) |
| razor sharp(expression, adjective, keen, fine, sharpened) |
| steely(adjective, keen, sharpened, whetted, sharp-edged) |
| canny(adjective, sharpened, whetted, sharp-edged) |
| Einstein(adjective, sharpened, whetted, sharp-edged) |
| bright(adjective, keen, sharpened, whetted, sharp-edged) |
| brilliant(adjective, sharpened, whetted, sharp-edged) |
| discerning(adjective, sharpened, whetted, sharp-edged) |
| discriminating(adjective, sharpened, whetted, sharp-edged) |
| keen(adjective, fine, sharpened, whetted, sharp-edged) |
| perspicacious(adjective, sharpened, whetted, sharp-edged) |
| quick(adjective, sharpened, whetted, sharp-edged) |
| sagacious(adjective, sharpened, whetted, sharp-edged) |
| sapient(adjective, sharpened, whetted, sharp-edged) |
| sensitive(adjective, sharpened, whetted, sharp-edged) |
| sharp-edged(adjective, keen, sharpened, whetted) |
| sharp as a tack(expression, adjective, idiom, sharpened, whetted) |
| sharpened(adjective, keen, whetted, sharp-edged) |
| shrewd(adjective, sharpened, whetted, sharp-edged) |
| whetted(adjective, keen, sharpened, sharp-edged) |