| caustic(adjective, strong, sharp, intense, powerful) |
| civil(adjective, kind, reasonable, friendly, sensible) |
| competent(adjective, cool, significant, intelligent, brilliant) |
| complaisant(attentive, compliant, submissive, docile, deferential) |
| comprehending(adjective, sympathetic, alert, witting, attentive) |
| concentrated |
| conforming |
| conservative(thoughtful, sober, cautious, prudent, wary) |
| constant |
| controllable(attentive, compliant, submissive, docile, deferential) |
| controlled(cautious, tactful, circumspect) |
| cool(adjective, deliberate, alert, significant, familiar) |
| courteous(adjective, kind, friendly, delicate, sensitive) |
| critical |
| custodial |
| cute(understanding, sharp, smart, shrewd, perceptive) |
| deducing(adjective, alert, attentive, watchful, sharp-eyed) |
| deep(adjective, strong, intense, powerful, acute) |
| detail-oriented(adjective, person) |
| detecting(adjective, alert, attentive, watchful, sharp-eyed) |