| nippy(adjective, cool, severe, keen, sharp) |
| numbing(adjective, cool, severe, keen, sharp) |
| permeating(verb, adjective, sharp, powerful, piercing) |
| powerful(adjective, strong, severe, sharp, intense) |
| privy(adjective, intimate, secret, private, detailed) |
| sagacious(adjective, understanding, sharp, smart, intelligent) |
| sage(understanding, sharp, smart, bright, sensitive) |
| searching(adjective, sound, alert, intelligent, perceptive) |
| secret(adjective, heavy, deep, thoughtful, serious) |
| sharp-witted(adjective, sharp, smart, intelligent, brilliant) |
| smart(adjective, understanding, keen, sharp, bright) |
| squeaky(adjective, shrill) |
| treble(adjective, sharp, intense, high, loud) |
| wise(understanding, sharp, smart, bright, intelligent) |
| absorbing |
| acrid(adjective, strong, sharp, harsh, powerful) |
| acrimonious(adjective, strong, hard, severe, cold) |
| brainy(adjective, understanding, keen, sharp, smart) |
| confidential(adjective, intimate, private, personal) |
| cute(adjective, understanding, sharp, smart, bright) |