| earthy(adjective, tough, rational, straightforward, sober) |
| factual(adjective, tough, rational, straightforward, sober) |
| feasible(adjective, tough, rational, straightforward, sober) |
| formal(adjective, cool, cold, indifferent, detached) |
| frosted |
| frozen |
| going with the flow(expression, adjective, idiom, detached, impassive) |
| hellacious(adjective, bad behavior) |
| hostile(adjective, indifferent, unfriendly, aloof, distant) |
| ill-natured(adjective, bad behavior) |
| in cold blood(expression, adjective, idiom, detached, blank) |
| inaudacious(adjective, bad behavior) |
| incurious(adjective, apathetic) |
| indurate(adjective, bad, cold, aloof, no feelings) |
| indurated(adjective, cool, blank, aloof, unemotional) |
| inert |
| inexpressive(adjective, cool, detached, blank, aloof) |
| inscrutable(adjective, cool, blank, aloof, unemotional) |
| insentient(adjective, bad, cold, aloof, no feelings) |
| insouciant |