Synonyms|718Antonyms|124|Broader|10Narrower|0Related|388

117 entries under constant topic. ×

2
static(set, regular, fixed, rigid)
1
bound(adjective, determined, steady, resolute, persistent)
1
bound and determined(expression, adjective, idiom, determined, persistent)
1
day-and-night(continuous, endless, infinite, boundless)
1
diurnal(stable, enduring, lasting, durable)
1
for keeps(expression, stable, enduring, lasting)
1
forever(stable, enduring, lasting, permanent)
1
forever and a day(expression, idiom, stable, lasting)
1
hanging tough(expression, adjective, persistent, pitiless)
1
hard-headed(adjective, persistent, pitiless, unyielding)
1
immovable(set, determined, regular, rigid)
1
indeterminate(abundant, unrestrained, vast, endless)
1
intransigent(adjective, persistent, pitiless, unyielding)
1
iron-fisted(adjective, persistent, pitiless, unyielding)
1
merciless(adjective, persistent, pitiless, unyielding)
1
multitudinous(abundant, unrestrained, endless, immense)
1
neverending(adjective, present, persistent, continuous)
1
no end to(expression, idiom, endless, infinite)
1
on a treadmill(expression, idiom, steady, regular)
1
remorseless(adjective, persistent, pitiless, unyielding)
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APASmart Define. (2016). perpetual thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/perpetual/thesaurus/synonyms
ChicagoSmart Define. 2016. "perpetual thesaurus" https://smartdefine.org/perpetual/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, perpetual thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/perpetual/thesaurus/synonyms>.
MLASmart Define. "perpetual thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/perpetual/thesaurus/synonyms>