275 entries under adjective topic. ×

5
ongoing
5
overlong(slow, constant, tedious, late)
5
round-the-clock(continue, continual)
5
sempiternal(eternal, perpetuity)
5
straight(continuous, continual, nonstop)
5
sustained(slow, persistent, late, continuous)
5
unfathomable(constant, abundant, unrestrained, endless)
4
connected(steady, regular, persistent, constant)
4
deathless(constant, abundant, unrestrained, endless)
4
enormous(absolute, huge, vast, endless)
4
even(persistent, continuous, endless, relentless)
4
imperishable
4
incomprehensible(complete, absolute, unrestrained, extensive)
4
interminate(free, continuous, endless, infinite)
4
rambling
4
regular(steady, stable, persistent, constant)
4
repetitive
4
termless(infinite, infinity)
4
titanic(huge, vast, massive)
4
unchanging(steady, persistent, constant, continuous)
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APASmart Define. (2016). interminable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/interminable/thesaurus/synonyms
ChicagoSmart Define. 2016. "interminable thesaurus" https://smartdefine.org/interminable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, interminable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/interminable/thesaurus/synonyms>.
MLASmart Define. "interminable thesaurus" 4 March 2016. Web. 23 September 2026. <https://smartdefine.org/interminable/thesaurus/synonyms>