Synonyms|294Antonyms|118|Broader|9Narrower|0Related|763
1
continuous
1
diuturnal
1
durable
1
imperishable
1
indestructible
1
infinite(adjective, end, limitless)
1
lengthy(adjective, lasting)
1
lifelong
1
perdurable
1
persistent
1
stable(weak, soft, changeable)
1
stationary
1
time-consuming
1
unceasing
1
unchanging
0
abiding
0
dateless
0
accurate
0
ageless
0
all-knowing
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APASmart Define. (2016). ephemeral thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ephemeral/thesaurus/antonyms
ChicagoSmart Define. 2016. "ephemeral thesaurus" https://smartdefine.org/ephemeral/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, ephemeral thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ephemeral/thesaurus/antonyms>.
MLASmart Define. "ephemeral thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/ephemeral/thesaurus/antonyms>