102 entries under cruel topic. ×

13
dear(adjective, fancy, difficult, harsh, informal)
12
cold(adjective, hard, severe, harsh, careless)
12
rigorous(adjective, hard, severe, rough, difficult)
12
stern(adjective, hard, severe, rough, firm)
11
hard-nosed(adjective, hard, severe, rough, firm)
11
stony(adjective, hard, firm, careless, indifferent)
10
difficult(adjective, hard, tough, severe, rough)
10
dogged(adjective, set, harsh, determined)
10
extreme(adjective, severe, harsh, extraordinary)
9
arduous(adjective, hard, tough, severe, rough)
9
callous(adjective, set, strong, hard, severe)
8
stringent(adjective, hard, severe, rough, difficult)
7
exacting(adjective, hard, tough, severe, rough)
7
heavy(adjective, set, hard, tough, severe)
6
drastic(adjective, hard, severe, rough, harsh)
5
hardened(adjective, hard, tough, firm, solid)
5
merciless(adjective, hard, rough, harsh)
4
flinty(adjective, strong, hard, severe, harsh)
4
grim(adjective, tough, severe, harsh)
4
implacable(adjective, harsh, determined, fierce)
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APASmart Define. (2015). stiff thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, stiff thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>.
MLASmart Define. "stiff thesaurus" 24 December 2015. Web. 28 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms>