82 entries under insistent topic. ×
| iron(adjective, mean, strong, hard, tough) | |
| implacable(adjective, mean, strong, hard, tough) | |
| resolved(adjective, severe, harsh, cruel, determined) | |
| grim(adjective, strong, hard, tough, severe) | |
| dogged(adjective, mean, hard, harsh, cruel) | |
| remorseless(adjective, harsh, resist, cruel, determined) | |
| contrary(adjective, determined, resolute, persistent, obstinate) | |
| die-hard(adjective, resist, determined, resolute, persistent) | |
| undeviating(adjective, severe, harsh, cruel, determined) | |
| brassbound(adjective, resist, determined, resolute, persistent) | |
| narrow-minded(adjective, persistent, obstinate, dogged) | |
| single-minded(adjective, tough, severe, firm, harsh) | |
| cruel(adjective, strong, hard, tough, severe) | |
| hard-line(adjective, strong, hard, tough, severe) | |
| pitiless(adjective, severe, harsh, cruel, determined) | |
| indomitable(adjective, strong, hard, tough, resolute) | |
| merciless(adjective, harsh, cruel, determined, fierce) | |
| ruthless(adjective, severe, harsh, cruel, determined) | |
| unflinching(adjective, harsh, cruel, determined, fierce) | |
| unforgiving(adjective, harsh, cruel, determined, fierce) |
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| APA | Smart Define. (2015). rigid thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, rigid thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>. |
| MLA | Smart Define. "rigid thesaurus" 3 August 2015. Web. 22 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms> |