136 entries under tough topic. ×

1
grievous(adjective, severe, harsh, grim)
1
hairy(adjective, rough, difficult, heavy)
1
hang-tough(adjective, strong, hard, severe)
1
hard-boiled(adjective, strong, hard, severe)
1
hard-core(adjective, strong, hard, severe)
1
hard-line(adjective, strong, hard, severe)
1
hard-nosed(adjective, close, strong, hard)
1
hard-shell(adjective, strong, hard, severe)
1
hardheaded(adjective, strong, hard, severe)
1
heavy(adjective, strong, hard, severe)
1
immovable(adjective, strong, hard, sturdy)
1
intemperate(adjective, severe, harsh, cruel)
1
involved(adjective, rough, difficult, heavy)
1
irksome(adjective, rough, difficult, heavy)
1
iron-fisted(adjective, mean, severe, firm)
1
knotty(adjective, rough, difficult, heavy)
1
mortified(adjective, strong, hard, severe)
1
mulish(adjective, strong, hard, severe)
1
murder(adjective, rough, difficult, heavy)
1
onerous(adjective, rough, difficult, harsh)
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APASmart Define. (2016). unsparing thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unsparing/thesaurus/synonyms
ChicagoSmart Define. 2016. "unsparing thesaurus" https://smartdefine.org/unsparing/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unsparing thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unsparing/thesaurus/synonyms>.
MLASmart Define. "unsparing thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/unsparing/thesaurus/synonyms>