- Definitions|2
- Thesaurus|729
- Abbreviations|0
95 entries under certain topic. ×
| unchanging(adjective, change, steady, regular) | |
| consistent(adjective, change, set, regular) | |
| continual(adjective, continue, constant, unchanging) | |
| unwavering(adjective, set, clear, strong, firm) | |
| changeless(adjective, change, set, clear, firm) | |
| continuous(adjective, continue, unchanging) | |
| firm(adjective, good, set, clear, strong) | |
| secure(adjective, open, solid, true) | |
| assiduous(adjective, unchanging) | |
| ceaseless(adjective, continue, unchanging) | |
| continuing(adjective, strong, firm, determined) | |
| diligent(adjective, unchanging) | |
| endless(adjective, continue, steady, constant) | |
| solid(adjective, good, strong, open) | |
| unrelenting(adjective, unchanging) | |
| unvarying(adjective, steady, regular, definite) | |
| eternal(adjective, continue, steady, fixed) | |
| fixed(adjective, set, clear, regular) | |
| sure-fire(adjective, informal, flawless, unquestionable) | |
| surefire(adjective, reliable, trustworthy, unquestionable) |
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| APA | Smart Define. (2016). unfailing thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unfailing/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unfailing thesaurus" https://smartdefine.org/unfailing/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, unfailing thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unfailing/thesaurus/synonyms>. |
| MLA | Smart Define. "unfailing thesaurus" 3 March 2016. Web. 26 September 2026. <https://smartdefine.org/unfailing/thesaurus/synonyms> |