107 entries under severe topic. ×
| fundamental | |
| hidebound | |
| imperial | |
| lean | |
| meticulous | |
| obdurate | |
| obstinate | |
| powerful(adjective, strong, sharp, intense) | |
| precise | |
| prudish | |
| puritanical | |
| razor-sharp(adjective, strong, sharp, intense) | |
| relentless | |
| spare | |
| spartan | |
| stark | |
| stiff-necked | |
| strait-laced | |
| alienated(adjective, nasty, hostile, resentful) | |
| begrudging(adjective, nasty, hostile, resentful) |
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| APA | Smart Define. (2015). caustic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/caustic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "caustic thesaurus" https://smartdefine.org/caustic/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, caustic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/caustic/thesaurus/synonyms>. |
| MLA | Smart Define. "caustic thesaurus" 21 July 2015. Web. 25 September 2026. <https://smartdefine.org/caustic/thesaurus/synonyms> |