157 entries under persistent topic. ×
| pat(adjective, serious, resolute, unwavering) | |
| prolonged(steady, stable, regular, lasting) | |
| protracted(continuous, endless, lasting, infinite) | |
| regularized(adjective, fixed, continuous, endless) | |
| remorseless(adjective, pitiless, unyielding, endless) | |
| set on(expression, adjective, serious, resolute) | |
| solid as rock(expression, adjective, idiom, calm, substantial) | |
| standardized(adjective, ordinary, usual, fixed, normal) | |
| stiff-necked(adjective, pitiless, unyielding, endless) | |
| unabated(adjective, pitiless, unyielding, endless) | |
| unmitigated(abundant, continuous, unrestrained, lasting) | |
| unquestioning(adjective, set, clear, firm, solid) | |
| wholehearted(adjective, complete, firm, honest, sensible) | |
| hard as nails(expression, idiom, serious, resolute) | |
| haunting(lasting, remaining) | |
| ironfisted | |
| merciless(adjective, pitiless, unyielding, endless) |
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| APA | Smart Define. (2016). constant thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/constant/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "constant thesaurus" https://smartdefine.org/constant/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, constant thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/constant/thesaurus/synonyms>. |
| MLA | Smart Define. "constant thesaurus" 12 February 2016. Web. 20 September 2026. <https://smartdefine.org/constant/thesaurus/synonyms> |