127 entries under persistent topic. ×
| hanging tough(expression, adjective, mean, hard, determined) | |
| intractable(adjective, tough, firm, obstinate) | |
| remorseless(adjective, harsh, resist, cruel, determined) | |
| unswerving(adjective, complete, total, intense, determined) | |
| contrary(adjective, determined, resolute, obstinate) | |
| die-hard(adjective, resist, determined, resolute) | |
| undeviating(adjective, severe, harsh, cruel, determined) | |
| brassbound(adjective, resist, determined, resolute) | |
| narrow-minded(adjective, obstinate, insistent, dogged) | |
| single-minded(adjective, tough, severe, firm, harsh) | |
| cruel(adjective, strong, hard, tough, severe) | |
| hard-line(adjective, strong, hard, tough, severe) | |
| changeless(adjective, set, severe, firm, still) | |
| persevering(adjective, tough, firm, determined, unreasonable) | |
| pitiless(adjective, severe, harsh, cruel, determined) | |
| faithful(adjective, correct, solid, intense, exact) | |
| immobile(adjective, secure, intense, still, steady) | |
| staunch(adjective, set, hard, determined, resolute) | |
| contumacious(adjective, tough, firm, obstinate) | |
| indomitable(adjective, strong, hard, tough, resolute) |
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| APA | Smart Define. (2015). rigid thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, rigid thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>. |
| MLA | Smart Define. "rigid thesaurus" 3 August 2015. Web. 21 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms> |