15 entries under sturdy topic. ×

22
permanent(adjective, strong, tough, constant)
15
durable(adjective, strong, tough, stable)
14
enduring(adjective, tough, stable, constant)
14
lasting(adjective, strong, tough, stable)
12
fixed(adjective, tough, stable, constant)
10
abiding(adjective, tough, stable, constant)
10
constant(adjective, tough, stable, enduring)
5
long-lasting(adjective, tough, stable, constant)
4
firm(adjective, strong, tough, permanent)
3
persistent(adjective, tough, stable, moral)
3
stable(adjective, tough, constant, enduring)
3
strong(adjective, tough, permanent, untouchable)
1
perduring(tough, stable, constant, enduring)
1
reliable(adjective, tough, moral, principled)
0
resilient(adjective, strong, tough, permanent)
11 years ago|6.1k views|share |citing 
APASmart Define. (2015). indestructible thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/indestructible/thesaurus/synonyms
ChicagoSmart Define. 2015. "indestructible thesaurus" https://smartdefine.org/indestructible/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, indestructible thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/indestructible/thesaurus/synonyms>.
MLASmart Define. "indestructible thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/indestructible/thesaurus/synonyms>