| callous |
| casual(adjective, indifferent, detached, distant, remote) |
| ceremonious(quiet, gentle, cold, aloof, remote) |
| chilled |
| cloistered(adjective, close, quiet, separate, shy) |
| close(quiet, gentle, aloof, reserved, private) |
| closed |
| closed forever to(expression, idiom) |
| closet(close, quiet, private, isolated, secluded) |
| cold-shoulder(adjective, cool, cold, detached, unfriendly) |
| cold fish(expression, adjective, indifferent, detached, distant) |
| confidential(close, quiet, private, isolated, secluded) |
| conscienceless(adjective, expensive, high-priced, pricey, pricely) |
| constrained |
| consumptive(adjective, expensive, high-priced, pricey, pricely) |
| cost-consuming(adjective, expensive, high-priced, pricey, pricely) |
| cost intensive(adjective, expensive, high-priced, pricey, pricely) |
| costive(adjective, expensive, high-priced, pricey, pricely) |
| costly(adjective, expensive, high-priced, pricey, pricely) |
| countless |