Synonyms|224Antonyms|31|Broader|1Narrower|0Related|187
2
unceasing(lasting, permanent, everlasting, unending, undying)
2
unremitting(lasting, permanent, everlasting, unending, undying)
2
without end(expression, vast, lasting, permanent, everlasting)
1
abiding(lasting, permanent, everlasting, unending, undying)
1
aboriginal(last, original, past, primitive, venerable)
1
acknowledged
1
admitted
1
auld
1
bottomless(adjective, infinite)
1
boundless(adjective, infinite)
1
bygone(last, original, past, primitive, venerable)
1
cast-off(last, original, past, primitive, venerable)
1
coeternal
1
continued(lasting, permanent, everlasting, unending, undying)
1
continuous
1
countless(adjective, infinite)
1
crumbling(last, original, past, traditional, venerable)
1
custom(impulse, oldness)
1
dated(last, original, past, venerable, outdated)
1
decayed(last, original, past, traditional, venerable)
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APASmart Define. (2016). immemorial thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/immemorial/thesaurus/synonyms
ChicagoSmart Define. 2016. "immemorial thesaurus" https://smartdefine.org/immemorial/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, immemorial thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/immemorial/thesaurus/synonyms>.
MLASmart Define. "immemorial thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/immemorial/thesaurus/synonyms>