181 entries under persistent topic. ×

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dependable(adjective, resolute, dedicated, unwavering)
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equable(adjective, continuous, endless, continual)
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even(adjective, continuous, endless, continual)
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homogeneous(adjective, continuous, endless, continual)
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liege(adjective, intense, resolute, dedicated)
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like the Rock of Gibralter(expression, adjective, idiom, continuous)
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monochrome(adjective, continuous, endless, continual)
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monophonic(adjective, continuous, endless, continual)
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never-failing(adjective, intense, resolute, rigid)
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of a piece(expression, adjective, idiom, continuous)
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regularized(adjective, continuous, endless, continual)
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solid as rock(expression, adjective, idiom, continuous)
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stabile(adjective, continuous, endless, continual)
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standardized(adjective, continuous, endless, continual)
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together(adjective, continuous, endless, continual)
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tried-and-true(adjective, intense, resolute, dedicated)
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true-blue(adjective, intense, resolute, dedicated)
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unflappable(adjective, continuous, endless, continual)
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unfluctuating(adjective, continuous, endless, continual)
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uniform(adjective, continuous, endless, continual)
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APASmart Define. (2015). relentless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/relentless/thesaurus/synonyms
ChicagoSmart Define. 2015. "relentless thesaurus" https://smartdefine.org/relentless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, relentless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/relentless/thesaurus/synonyms>.
MLASmart Define. "relentless thesaurus" 24 June 2015. Web. 22 September 2026. <https://smartdefine.org/relentless/thesaurus/synonyms>