85 entries under stern topic. ×

9
authoritarian(adjective, strong, hard, tough, severe)
9
dour(adjective, tough, severe, firm, harsh)
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, harsh)
7
grim(adjective, strong, hard, tough, severe)
7
pitiless(adjective, severe, harsh, cruel, determined)
7
tight(adjective, severe, stiff, rigid)
7
unsparing(adjective, strong, hard, tough, severe)
6
extreme(adjective, severe, harsh, cruel, brutal)
6
hard-boiled(adjective, strong, hard, tough, severe)
6
ruthless(adjective, hard, rough, harsh, cruel)
6
square(adjective, moderate, severe, firm, harsh)
6
straight(adjective, close, correct, moderate, severe)
5
astringent(adjective, strong, hard, tough, severe)
5
intolerant(adjective, severe, plain, straightforward)
5
resolute(adjective, close, strong, hard, tough)
5
unchanging(adjective, close, correct, severe, harsh)
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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>