| uninterested(adjective, indifferent, coarse, detached, distant) |
| unrelenting(adjective, animal, mean, hard, tough) |
| vengeful(adjective, tough, severe, evil, nasty) |
| vindictive(adjective, mean, severe, nasty, harsh) |
| wanton(adjective, mean, severe, harsh, cruel) |
| affectless |
| atrocious(adjective, evil, nasty, harsh, vicious) |
| beastly(adjective, rough, cruel, vicious, fierce) |
| bestial(adjective, animal, mean, severe, evil) |
| compassionless(adjective, mean, hard, severe, attitude) |
| crotchety(adjective, cruel, unsympathetic, numb, pitiless) |
| demanding |
| ferocious(adjective, animal, mean, evil, nasty) |
| forbidding(adjective, person, close, hard, cool) |
| frozen(adjective, numb, insensitive, dazed, under) |
| gross(adjective, hard, tough, harsh, rude) |
| hellish(adjective, evil, nasty, harsh, vicious) |
| impercipient |
| inclement(adjective, tough, harsh, cruel, grim) |
| indurate(adjective, bad, cold, aloof, no feelings) |