43 entries under hard topic. ×
| inelastic(adjective, tough, solid, rigid) | |
| nonporous(tough, solid, rigid, inflexible) | |
| set(verb, adjective, tough, slight) | |
| stony(adjective, set, strong, firm) | |
| substantial(adjective, close, set, strong) | |
| tough(adjective, set, firm, solid) | |
| callous(adjective, set, strong, firm) | |
| close-grained(adjective, set, tough, firm) | |
| congealed(adjective, set, tough, firm) | |
| impervious(adjective, set, tough, solid) | |
| indurate(adjective, set, strong, firm) | |
| jelled(adjective, set, tough, solid) | |
| strong(adjective, close, set, firm) | |
| adamantine(adjective, set, strong, firm) | |
| fine-grained(tough, solid, rigid, inflexible) | |
| hard-bitten | |
| hard-handed(adjective, set, strong, compact) | |
| hard as nails(expression, adjective, idiom, set, strong) | |
| indurated(adjective, set, strong, firm) | |
| iron(adjective, set, strong, firm) |
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