- Definitions|2
- Thesaurus|3.3k
- Abbreviations|0
109 entries under hard topic. ×
| resolute(adjective, close, strong, tough) | |
| strong(adjective, tough, severe, flat) | |
| unrelenting(adjective, strong, tough, severe) | |
| confirmed(adjective, rough, harsh, proper) | |
| difficult(adjective, tough, severe, rough) | |
| forbidding(adjective, strong, tough, severe) | |
| hard-and-fast(adjective, rigid, inflexible, obstinate) | |
| hard-line(adjective, strong, tough, severe) | |
| intractable(adjective, persistent, rigid, obstinate) | |
| rugged(adjective, strong, tough, severe) | |
| unalterable(set, strong, severe, certain) | |
| unchangeable(adjective, strong, certain, definite) | |
| unpermissive(adjective, severe, rough, firm) | |
| adamantine(adjective, set, strong, tough) | |
| hard-nosed(adjective, strong, tough, severe) | |
| hard-shell(adjective, strong, tough, severe) | |
| hard-shelled(adjective, tough, severe, rough) | |
| immovable(adjective, set, strong, tough) | |
| immutable(rigid, inflexible, obstinate, stubborn) | |
| indomitable(adjective, strong, tough, resolute) |
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| APA | Smart Define. (2015). strict thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/strict/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "strict thesaurus" https://smartdefine.org/strict/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, strict thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/strict/thesaurus/synonyms>. |
| MLA | Smart Define. "strict thesaurus" 3 August 2015. Web. 25 September 2026. <https://smartdefine.org/strict/thesaurus/synonyms> |