1,499 entry under adjective topic. ×

48
unyielding(set, hard, sound, tough)
47
large(feature, characteristic, person, body)
46
sturdy(calm, person, body, strong)
46
fast(calm, secure, tough, continue)
46
impregnable(sound, reasonable, strain, rational)
45
resilient(tough, strain, determined, stiff)
45
big(feature, characteristic, person, body)
45
rigid(hard, tough, strain, firm)
44
lasting(strain, firmness, labour, hardiness)
42
permanent(strain, firmness, labour, hardiness)
41
tough(calm, person, body, hard)
41
tight(close, hard, secure, tough)
41
well-established(strain, firmness, distinct, labour)
40
resistant(tough, strain, fit, healthy)
40
abundant(strain, firmness, greatness, labour)
40
invariable(strain, firmness, labour, hardiness)
39
potent(good, clear, great, sound)
39
huge(feature, characteristic, person, body)
39
proof(strain, firmness, labour, hardiness)
39
refractory(strain, firmness, labour, hardiness)
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APASmart Define. (2016). strong thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/strong/thesaurus/synonyms
ChicagoSmart Define. 2016. "strong thesaurus" https://smartdefine.org/strong/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, strong thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/strong/thesaurus/synonyms>.
MLASmart Define. "strong thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/strong/thesaurus/synonyms>