24 entries under adjective topic. ×

7
permanent
4
eternal
4
everlasting
4
lasting
2
enduring
2
indelible(temporary, indestructible)
1
undying
1
continuing
1
perpetual
1
durable
1
immortal
1
persistent
1
unalterable
1
unfailing(certain, unchanging)
0
continual
0
immutable
0
inalienable(absolute, inherent)
0
invariable
0
irreparable
0
irretrievable
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APASmart Define. (2016). impermanent thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/impermanent/thesaurus/antonyms
ChicagoSmart Define. 2016. "impermanent thesaurus" https://smartdefine.org/impermanent/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2016, impermanent thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/impermanent/thesaurus/antonyms>.
MLASmart Define. "impermanent thesaurus" 26 February 2016. Web. 21 September 2026. <https://smartdefine.org/impermanent/thesaurus/antonyms>