| steadfast(adjective, close, strong, tough, correct) |
| unwavering(adjective, close, strong, correct, firm) |
| firm(noun, adjective, close, strong, tough) |
| undeviating(adjective, smooth, firm, solid, level) |
| staunch(noun, adjective, close, strong, tough) |
| unfaltering(adjective, strong, firm, total, solid) |
| loyal(adjective, close, correct, firm, honest) |
| resolute(adjective, close, strong, tough, correct) |
| determined(adjective, strong, tough, firm, total) |
| steady(adjective, close, strong, complete, correct) |
| faithful(adjective, close, correct, firm, honest) |
| constant(adjective, close, strong, correct, firm) |
| persistent(adjective, strong, tough, firm, determined) |
| direct(adjective, smooth, solid, level, true) |
| inflexible(adjective, strong, smooth, tough, firm) |
| unyielding(adjective, strong, tough, firm, determined) |
| true(adjective, close, strong, smooth, tough) |
| unbending(adjective, direct, solid, determined, straight) |
| unflagging(adjective, set, strong, complete, firm) |
| unflinching(adjective, set, strong, firm, determined) |