- Definitions|2
- Thesaurus|425
- Abbreviations|0
| formalness(severity, strictness, sternness) | |
| fortitude | |
| fractiousness | |
| frowardness | |
| graveness(severity, strictness, sternness) | |
| gravity(severity, strictness, sternness) | |
| hard | |
| hardening | |
| hardheadedness | |
| hardheartedness(ruthlessness, pitilessness, mercilessness) | |
| hardship(severity, harshness, conformity, strictness, conservatism) | |
| headier | |
| headiness | |
| headstrong | |
| headstrongness | |
| heartlessness(ruthlessness, pitilessness, mercilessness, relentlessness) | |
| immanity | |
| imperviousness | |
| incrustation | |
| indefatigability |
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| APA | Smart Define. (2015). obduracy thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/obduracy/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "obduracy thesaurus" https://smartdefine.org/obduracy/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, obduracy thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/obduracy/thesaurus/synonyms>. |
| MLA | Smart Define. "obduracy thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/obduracy/thesaurus/synonyms> |