Synonyms|525Antonyms|75|Broader|2Narrower|0Related|592
2
drawn-out(adjective, slow, tedious, late, long)
2
durable(adjective, durable)
2
elephantine(adjective, huge, vast, massive)
2
gigantic(adjective, huge, vast, massive)
2
homogeneous(adjective, persistent, continuous, endless, relentless)
2
humongous(adjective, huge, vast, massive)
2
illimited
2
indefatigable(adjective, continuous)
2
indeterminate(adjective, constant, abundant, unrestrained, endless)
2
jumbo(adjective, huge, vast, massive)
2
level(adjective, continuous)
2
lifelong(adjective, durable)
2
long-drawn
2
long-life(adjective, durable)
2
longish(tedious, long, extended, drawn-out, long-lasting)
2
longsome
2
loquacious(adjective, rambling, long-drawn-out)
2
mammoth(adjective, huge, vast, massive)
2
marathon
2
massive(adjective, huge, vast)
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APASmart Define. (2016). interminable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/interminable/thesaurus/synonyms
ChicagoSmart Define. 2016. "interminable thesaurus" https://smartdefine.org/interminable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, interminable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/interminable/thesaurus/synonyms>.
MLASmart Define. "interminable thesaurus" 4 March 2016. Web. 22 September 2026. <https://smartdefine.org/interminable/thesaurus/synonyms>