198 entries under hard topic. ×
| fibrous(adjective, thin, solid, vigorous) | |
| immovable(adjective, secure, tough, solid) | |
| inflexible(adjective, set, tough, flat) | |
| rigorous(adjective, tough, severe, sturdy) | |
| ruling(feature, force, energetic, powerful) | |
| slashing(noun, adjective, feature, force) | |
| steely(adjective, tough, sturdy, rigid) | |
| tender(adjective, force, open, effect) | |
| unbending(adjective, close, tough, flat) | |
| vast(force, powerful, active, significant) | |
| vowel(verb, adjective, feature, force) | |
| water(verb, adjective, feature, force) | |
| hard as nails(expression, adjective, idiom, sound) | |
| adamant(adjective, tough, flat, firm) | |
| cohesive(adjective, close, tough, firm) | |
| concrete(adjective, set, firm, substantial) | |
| express(verb, adjective, force, effect) | |
| faint(verb, adjective, feature, force) | |
| hard-bitten(adjective, energetic, stiff, tight) | |
| hard-nosed(adjective, tough, determined, resolute) |
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| APA | Smart Define. (2016). strong thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/strong/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "strong thesaurus" https://smartdefine.org/strong/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, strong thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/strong/thesaurus/synonyms>. |
| MLA | Smart Define. "strong thesaurus" 1 April 2016. Web. 24 September 2026. <https://smartdefine.org/strong/thesaurus/synonyms> |