| softening |
| solid(adjective, hard, firm, stiff, tense) |
| solidified(verb, adjective, hard, firm, solid) |
| starched(verb, adjective, hard, firm, solid) |
| starchy(adjective, hard, firm, solid, tense) |
| stark(adjective, hard, firm, solid, tense) |
| steely(adjective, hard, firm, solid, tense) |
| stiff as a board(expression, adjective, idiom, firm, solid) |
| stony(adjective, hard, firm, solid, stiff) |
| taut(adjective, hard, firm, solid, stiff) |
| tense(adjective, hard, firm, solid, stiff) |
| thick(adjective, hard, firm, solid, stiff) |
| thickened(adjective, hard, firm, solid, tense) |
| tight(adjective, hard, firm, solid, stiff) |
| unbending(adjective, hard, firm, solid, stiff) |
| unflexible(adjective, hard, firm, solid, tense) |
| ungraceful(adjective, hard, firm, solid, tense) |
| unsupple(adjective, hard, firm, solid, tense) |
| unyielding(adjective, hard, firm, solid, stiff) |
| wooden(adjective, hard, firm, solid, tense) |