151 entries under harsh topic. ×

11
oppressive(adjective, hard, tough, severe, rough)
10
relentless(adjective, strong, hard, tough, severe)
10
thorough(adjective, severe, exceptional, careful)
10
unbending(adjective, strong, hard, tough, severe)
9
authoritarian(adjective, strong, hard, tough, severe)
9
dour(adjective, tough, severe, firm)
9
fussy(adjective, hard, tough, exact)
9
obdurate(adjective, strong, hard, tough, severe)
8
stiff(adjective, hard, tough, severe, rough)
8
inexorable(adjective, strong, hard, tough, severe)
8
set(adjective, strong, severe, flat, firm)
8
sharp(adjective, correct, severe, obscure)
8
undeviating(adjective, strong, flat, honest)
7
grim(adjective, strong, hard, tough, severe)
7
absolute(adjective, set, severe, exact)
7
determined(adjective, strong, flat, certain)
7
finicky(adjective, careful, precise, rigid)
7
painstaking(adjective, exact, careful, regular)
7
pitiless(adjective, severe, cruel, determined)
7
unsparing(adjective, strong, hard, tough, severe)
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APASmart Define. (2015). strict thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/strict/thesaurus/synonyms
ChicagoSmart Define. 2015. "strict thesaurus" https://smartdefine.org/strict/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, strict thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/strict/thesaurus/synonyms>.
MLASmart Define. "strict thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/strict/thesaurus/synonyms>