76 entries under persistent topic. ×

2
sustained(adjective, constant, continuous, unyielding)
2
unabated(adjective, severe, pure, constant)
2
unbending(adjective, direct, severe, pure, straight)
2
unfluctuating(adjective, calm, direct, smooth, right)
1
abiding(adjective, constant, continuous, endless)
1
bound(adjective, constant, pitiless, unyielding)
1
bound and determined(expression, adjective, idiom, constant)
1
chronic(adjective, constant, continuous, endless)
1
ferocious(adjective, harsh, violent, wild, vicious)
1
fierce(adjective, harsh, violent, wild, vicious)
1
firm(adjective, dull, complete, steady, stable)
1
hanging tough(expression, adjective, constant, pitiless)
1
hard-headed(adjective, constant, pitiless, unyielding)
1
inflexible(adjective, smooth, right, solid, level)
1
intransigent(adjective, constant, pitiless, unyielding)
1
iron-fisted(adjective, constant, pitiless, unyielding)
1
like the Rock of Gibralter(expression, adjective, idiom, steady, stable)
1
merciless(adjective, violent, vicious, fierce)
1
monochrome(adjective, dull, steady, stable, regular)
1
monophonic(adjective, dull, steady, stable, regular)
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APASmart Define. (2015). unbroken thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unbroken/thesaurus/synonyms
ChicagoSmart Define. 2015. "unbroken thesaurus" https://smartdefine.org/unbroken/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, unbroken thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unbroken/thesaurus/synonyms>.
MLASmart Define. "unbroken thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/unbroken/thesaurus/synonyms>