27 entries under permanent topic. ×

16
everlasting(adjective, strong, stable, constant, unable)
14
imperishable(adjective, moral, constant, stability, unable)
14
lasting(adjective, strong, tough, stable, sturdy)
10
abiding(adjective, tough, stable, sturdy, constant)
10
immutable(adjective, stable, constant, enduring, unable)
8
invulnerable(adjective, strong, invulnerable, untouchable)
8
perdurable(adjective, strong, tough, stable, constant)
6
hard(adjective, strong, firm, rigid, unyielding)
6
timeless(adjective, lasting, everlasting, eternal)
5
ageless(adjective, lasting, everlasting, unending)
5
unceasing(adjective, lasting, everlasting, unending)
4
firm(adjective, strong, tough, sturdy)
4
indissoluble(adjective, strong, stability, unable, lasting)
4
perennial(adjective, stable, constant, enduring, lasting)
3
dateless(lasting, everlasting, unending, undying)
3
strong(adjective, tough, sturdy, untouchable)
3
unfading(adjective, stable, constant, enduring, unable)
3
unremitting(lasting, everlasting, unending, undying)
3
without end(expression, lasting, everlasting, unending)
2
immemorial(lasting, everlasting, unending, undying)
<12>
11 years ago|6.1k views|share |citing 
APASmart Define. (2015). indestructible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/indestructible/thesaurus/synonyms
ChicagoSmart Define. 2015. "indestructible thesaurus" https://smartdefine.org/indestructible/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, indestructible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/indestructible/thesaurus/synonyms>.
MLASmart Define. "indestructible thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/indestructible/thesaurus/synonyms>