| stiff(adjective, careless, cruel, apathetic, hard-hearted) |
| strict(adjective, tough, hard-nosed) |
| strong-minded(adjective, determined, serious, resolute, persistent) |
| strong-willed(adjective, serious, resolute, persistent, unwavering) |
| stuck up(expression, adjective, indifferent, detached, distant) |
| tenacious(adjective, serious, resolute, persistent, unwavering) |
| tough(adjective, hard-nosed, unsubmissive, hard-as-nails) |
| uncompromising(adjective, unyielding) |
| unfaltering(adjective, serious, resolute, persistent, unwavering) |
| unfantastic(adjective, reasonable, sensible, sober, practical) |
| unflinching(adjective, serious, resolute, persistent, unwavering) |
| unhesitating(adjective, serious, resolute, persistent, unwavering) |
| unidealistic(adjective, reasonable, sensible, sober, practical) |
| unimpressible(adjective, stiff, unfeeling, rigid, callous) |
| unsentimental(adjective, reasonable, firm, sensible, sober) |
| unwavering(adjective, serious, resolute, persistent, gritty) |
| abnegating(adjective, quiet, restrained, subdued, unexcited) |
| above(adjective, indifferent, detached, distant, remote) |
| above-mentioned(higher, upper, abovementioned) |
| above-named(higher, upper, abovementioned) |