107 entries under harsh topic. ×

23
hard-nosed(adjective, mean, strong, hard, secure)
23
severe(adjective, strong, hard, tough, severe)
21
dogged(adjective, mean, strong, hard, tough)
20
stern(adjective, hard, tough, severe, rough)
19
strict(adjective, strong, hard, tough, moderate)
16
grim(adjective, strong, hard, tough, severe)
16
resolved(adjective, strong, severe, flat, firm)
16
rigorous(adjective, strong, hard, tough, severe)
13
headstrong(adjective, strong, hard, tough, rough)
13
unalterable(adjective, set, strong, hard, secure)
12
refractory(adjective, hard, tough, rough, firm)
12
remorseless(adjective, resist, cruel, determined)
11
austere(adjective, strong, hard, tough, severe)
10
immutable(adjective, set, hard, secure, rough)
10
stringent(adjective, hard, severe, rough, difficult)
9
callous(adjective, person, hard, tough, rough)
9
unforgiving(adjective, person, hard, rough)
8
flinty(adjective, strong, hard, tough, severe)
8
hard-line(adjective, strong, hard, tough, severe)
8
merciless(adjective, person, hard, rough)
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APASmart Define. (2016). inflexible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms
ChicagoSmart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, inflexible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>.
MLASmart Define. "inflexible thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms>