100 entries under severe topic. ×

71
inflexible(adjective, mean, strong, hard, tough)
64
rigid(adjective, mean, strong, hard, tough)
62
unyielding(adjective, mean, clear, strong, hard)
57
uncompromising(adjective, mean, clear, hard, tough)
51
firm(adjective, mean, clear, strong, hard)
50
inexorable(adjective, mean, strong, hard, tough)
50
obdurate(adjective, strong, hard, tough)
44
unrelenting(adjective, mean, strong, hard, tough)
43
determined(adjective, clear, strong, hard, tough)
43
resolute(adjective, clear, strong, hard, tough)
41
relentless(adjective, mean, strong, hard, tough)
40
stiff(adjective, hard, correct, rough)
25
obstinate(adjective, mean, hard, tough)
22
steadfast(adjective, clear, strong, tough)
19
hard(adjective, mean, strong, tough)
18
tough(adjective, mean, clear, strong, hard)
16
grim(adjective, strong, hard, tough)
16
severe(adjective, clear, strong, hard, tough)
15
hard-nosed(adjective, mean, clear, strong, hard)
14
stern(adjective, hard, tough, rough)
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APASmart Define. (2016). unbending thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unbending/thesaurus/synonyms
ChicagoSmart Define. 2016. "unbending thesaurus" https://smartdefine.org/unbending/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, unbending thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unbending/thesaurus/synonyms>.
MLASmart Define. "unbending thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/unbending/thesaurus/synonyms>