| sensible(adjective, sound, reasonable, sharp, smart) |
| shrewd(adjective, sensible, wise, prudent, clever) |
| shy(adjective, alert, safe, cautious, suspicious) |
| skimping(adjective, frugal, parsimonious, thrifty) |
| solid(adjective, good, strong, correct, honest) |
| steady(adjective, calm, good, strong, soft) |
| stringent(adjective, exact, strict, scrupulous, detailed) |
| thoroughgoing(adjective, thorough, meticulous, painstaking) |
| tireless |
| true(noun, good, strong, correct, honest) |
| trustworthy(adjective, exact, strict, scrupulous, detailed) |
| uneasy(adjective, upset, kind, excited, anxious) |
| well-advised(adjective, sensible, wise, shrewd) |
| acute(adjective, keen, sharp, refined, clever) |
| adjusted(adjective, exact, strict, scrupulous, detailed) |
| all ears(expression, adjective, sharp, bright, lively) |
| attentive to details(adjective, exact, strict, scrupulous, detailed) |
| awake(alert, restless, cautious, disturbed, aware) |
| calculated(adjective, deliberate, restrained, thoughtful, cautious) |
| calculating(adjective, reasonable, sensible, delicate, restrained) |