- Definitions|2
- Thesaurus|985
- Abbreviations|0
202 entries under adjective topic. ×
| desperate(hard, severe, rough, harsh) | |
| devoted | |
| drastic(hard, severe, rough, harsh) | |
| fated(fixed, even, rigid, inflexible) | |
| ferocious(hard, severe, rough, harsh) | |
| fierce(hard, severe, rough, harsh) | |
| habitual(dull, steady, stable, regular) | |
| hard-and-fast(set, hard, stiff, rigid) | |
| imperishable(stable, fixed, constant, enduring) | |
| incessant(persistent, constant, continuous, endless) | |
| inevitable | |
| interminable(persistent, constant, continuous, endless) | |
| like the Rock of Gibralter(expression, idiom, steady, stable) | |
| monochrome(dull, steady, stable, regular) | |
| monophonic(dull, steady, stable, regular) | |
| monotonous(dull, set, steady, stable) | |
| narrow(hard, severe, rough, harsh) | |
| nonstop(dull, steady, stable, regular) | |
| obdurate(hard, steady, fixed, rigid) | |
| pigheaded(obstinate, stubborn, unbending) |
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| APA | Smart Define. (2015). immutable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/immutable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "immutable thesaurus" https://smartdefine.org/immutable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, immutable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/immutable/thesaurus/synonyms>. |
| MLA | Smart Define. "immutable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/immutable/thesaurus/synonyms> |