65 entries under rigid topic. ×
| steadfast(adjective, resolute, persistent, strict) | |
| stiff(adjective, hard, severe, rough, firm) | |
| stubborn(adjective, appearance, hard, tough, rough) | |
| determined(adjective, resolute, persistent, obstinate) | |
| resolute(adjective, appearance, severe, terrible, resolute) | |
| unsparing(adjective, tough, severe, firm, harsh) | |
| obstinate(adjective, hard, tough, severe, rough) | |
| dogged(adjective, terrible, determined, resolute) | |
| oppressive(adjective, hard, tough, severe, rough) | |
| prudish(adjective, tough, severe, firm, harsh) | |
| set(adjective, tough, severe, firm, honest) | |
| tight | |
| Draconian(adjective, tough, severe, firm, harsh) | |
| hard-boiled(adjective, hard, tough, severe, rough) | |
| immovable(adjective, determined, resolute, uncompromising) | |
| puritanical(adjective, tough, severe, firm, harsh) | |
| strait-laced(adjective, tough, severe, firm, harsh) | |
| unchangeable(adjective, resolute) | |
| difficult(adjective, hard, severe, rough, harsh) | |
| resolved(adjective, resolute, persistent, obstinate) |
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| APA | Smart Define. (2016). stern thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stern/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "stern thesaurus" https://smartdefine.org/stern/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, stern thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stern/thesaurus/synonyms>. |
| MLA | Smart Define. "stern thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/stern/thesaurus/synonyms> |