| altruistic |
| apathetic(adjective, indifferent, detached, casual, aloof) |
| arguable(adjective, sound, sensible, rational, intelligent) |
| artless(adjective, free, friendly, appropriate, honest) |
| basic |
| believable(adjective, sound, sensible, rational, intelligent) |
| blase(indifferent, detached, distant, apathetic, unfeeling) |
| bystanding(detached, unconcerned, impartial, unbiased, removed) |
| callous(adjective, indifferent, detached, distant, apathetic) |
| calm(adjective, indifferent, rational, detached, aloof) |
| casual(adjective, indifferent, detached, aloof, remote) |
| cerebral(adjective, sound, sensible, rational, intelligent) |
| clear-cut(adjective, sound, sensible, rational, intelligent) |
| clinical(detached, unconcerned, impartial, unbiased, removed) |
| cognitive(adjective, sound, sensible, rational, intelligent) |
| cold(adjective, fair, indifferent, detached, distant) |
| cold-blooded(adjective, calm, detached, sober, unfeeling) |
| cold-fish(adjective, calm, detached, sober, unfeeling) |
| collected(adjective, calm, indifferent, rational, detached) |
| color-blind |