62 entries under stern topic. ×

5
rigid(adjective, strong, hard, tough, severe)
5
unfeeling(adjective, person, mean, tough, severe)
4
dour(adjective, close, hard, tough, severe)
4
oppressive(adjective, tough, severe, firm, harsh)
4
uncompromising(adjective, hard, severe, harsh, cruel)
3
authoritarian(adjective, strong, hard, tough, severe)
3
cold(adjective, close, hard, tough, severe)
3
difficult(adjective, tough, rough, harsh, heavy)
3
grim(adjective, mean, strong, hard, tough)
3
unbending(adjective, close, strong, hard, tough)
2
astringent(adjective, close, strong, hard, tough)
2
flinty(adjective, close, strong, hard, tough)
2
grinding(adjective, tough, rough, difficult, harsh)
2
implacable(adjective, mean, strong, hard, tough)
2
rugged(adjective, strong, hard, tough, severe)
2
strenuous(adjective, tough, rough, difficult, harsh)
1
arduous(adjective, tough, rough, difficult, harsh)
1
bitter(adjective, strong, hard, tough, harsh)
1
disciplinary(adjective, strong, hard, tough, severe)
1
distressing(adjective, tough, severe, rough, difficult)
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APASmart Define. (2016). unsparing thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unsparing/thesaurus/synonyms
ChicagoSmart Define. 2016. "unsparing thesaurus" https://smartdefine.org/unsparing/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, unsparing thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unsparing/thesaurus/synonyms>.
MLASmart Define. "unsparing thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/unsparing/thesaurus/synonyms>