- Definitions|2
- Thesaurus|729
- Abbreviations|0
196 entries under adjective topic. ×
| inexhaustible(strong, continue, firm, energetic) | |
| perpetual(continue, steady, fixed, persistent) | |
| true(good, strong, honest, solid) | |
| unerring(certain, flawless, accurate, unquestionable) | |
| faithful(good, strong, honest, solid) | |
| same(change, set, certain, regular) | |
| unchanging(change, certain, steady, regular) | |
| unremitting(strong, continue, firm, determined) | |
| unwearied(strong, continue, firm, energetic) | |
| consistent(change, set, certain, regular) | |
| continual(continue, certain, constant, unchanging) | |
| dogged(strong, firm, determined, steady) | |
| permanent(steady, fixed, constant, continuous) | |
| resolute(set, strong, firm, determined) | |
| stable(good, strong, solid, true) | |
| unswerving(set, strong, firm, determined) | |
| unwavering(set, clear, strong, firm) | |
| unwearying | |
| changeless(change, set, clear, firm) | |
| continuous(continue, certain, unchanging) |
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| APA | Smart Define. (2016). unfailing thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unfailing/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unfailing thesaurus" https://smartdefine.org/unfailing/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, unfailing thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unfailing/thesaurus/synonyms>. |
| MLA | Smart Define. "unfailing thesaurus" 3 March 2016. Web. 29 September 2026. <https://smartdefine.org/unfailing/thesaurus/synonyms> |