74 entries under stable topic. ×

83
strong(adjective, calm, good, strong, hard)
61
firm(noun, adjective, calm, close, strong)
59
sound(noun, adjective, calm, strong, hard)
49
solid(adjective, calm, good, close, strong)
38
unfluctuating(adjective, calm, strong, secure, strain)
34
durable(adjective, calm, strong, sound, secure)
27
steady(adjective, calm, strong, sound, secure)
24
fast(adjective, calm, strong, secure, tough)
23
robust(adjective, strong, sound, complete, tough)
22
steadfast(adjective, calm, strong, secure, strain)
22
sturdy(adjective, calm, strong, hard, sound)
21
enduring(adjective, calm, strong, sound, secure)
20
constant(adjective, calm, strong, secure, tough)
19
stabile(adjective, calm, strong, secure, strain)
19
tight(adjective, close, strong, hard, strain)
16
settled(adjective, strong, strain, firm, solid)
16
hearty(adjective, strong, sound, complete, tough)
10
sensible(adjective, good, body, reasonable, firm)
8
dependable(adjective, strong, tough, firm, solid)
8
reliable(adjective, calm, strong, secure, tough)
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APASmart Define. (2016). substantial thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, substantial thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>.
MLASmart Define. "substantial thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms>