| self-willed(tough, firm, determined, resolute, obstinate) |
| stiff-necked(adjective, strong, hard, tough, resist) |
| tenacious(adjective, tough, firm, resist, determined) |
| uncompromising(adjective, determined, resolute, obstinate, unshakeable) |
| unrelenting(adjective, strong, hard, tough, cold) |
| wilful(adjective, determined, resolute, obstinate, uncompromising) |
| adamantine(adjective, strong, hard, tough, firm) |
| business-minded |
| down-to-earth(adjective, hard, sound, reasonable, excite) |
| opinionated(adjective, tough, firm, determined, resolute) |
| unsentimental(adjective, hard, sound, reasonable, sensible) |
| adamant(adjective, strong, hard, tough, determined) |
| inexorable(adjective, strong, hard, tough, determined) |
| intransigent(adjective, determined, resolute, obstinate, uncompromising) |
| pragmatical(adjective, hard, sound, excite, real) |
| relentless(adjective, strong, hard, tough, cold) |
| sober(adjective, hard, sound, reasonable, sharp) |
| unbending(adjective, strong, hard, tough, determined) |
| unromantic(adjective, hard, sound, excite, real) |
| bigoted(adjective, determined, resolute, obstinate, uncompromising) |