157 entries under persistent topic. ×

1
deep-seated(fixed, continuous, lasting, continuing)
1
driven(adjective, firm, determined, serious, resolute)
1
ever-present(fixed, continuous, lasting, continuing)
1
hanging tough(expression, adjective, pitiless, unyielding)
1
hard-as-nails(adjective, serious, resolute, pat)
1
hard-headed(adjective, pitiless, unyielding, endless)
1
hardboiled(adjective, serious, resolute, pat)
1
inbred(fixed, continuous, lasting, continuing)
1
ineradicable(adjective, fixed, continuous, lasting)
1
intense(adjective, keen, firm, sensible, solid)
1
intransigent(adjective, secure, steady, fixed)
1
iron-fisted(adjective, pitiless, unyielding, endless)
1
like the Rock of Gibralter(expression, adjective, idiom, fixed)
1
mean business(expression, adjective, thoughtful, sober, serious)
1
monochrome(adjective, fixed, continuous, endless)
1
monophonic(adjective, fixed, continuous, endless)
1
never-failing(adjective, clear, strong, flat, firm)
1
neverending(adjective, resolute, living, continuous)
1
obdurate(adjective, strong, secure, flat, certain)
1
on ice(expression, adjective, serious, resolute)
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APASmart Define. (2016). constant thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/constant/thesaurus/synonyms
ChicagoSmart Define. 2016. "constant thesaurus" https://smartdefine.org/constant/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, constant thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/constant/thesaurus/synonyms>.
MLASmart Define. "constant thesaurus" 12 February 2016. Web. 21 September 2026. <https://smartdefine.org/constant/thesaurus/synonyms>