127 entries under tough topic. ×

5
dreadful(adjective, difficult, unpleasant, terrible)
5
sour(adjective, hard, severe, harsh)
5
terrible(adjective, appearance, unpleasant, vile)
4
formidable(adjective, appearance, unpleasant, terrible)
4
shocking(adjective, appearance, unpleasant, terrible)
4
strict(adjective, strong, hard, severe)
3
fierce(adjective, hard, harsh, terrible)
3
hard(adjective, person, strong, severe)
3
hard-hearted(adjective, person, hard, harsh)
3
heavy(adjective, strong, hard, severe)
3
off-putting(adjective, offensive, dark, disgusting)
3
rough(adjective, person, strong, hard)
3
rugged(adjective, strong, hard, harsh)
3
serious(adjective, close, strong, hard)
3
steely(adjective, strong, hard, severe)
3
strait-laced(adjective, close, hard, severe)
3
unforgiving(adjective, person, hard, harsh)
2
awful(adjective, nasty, unpleasant, terrible)
2
flinty(adjective, close, strong, hard)
2
frowning(adjective, strong, hard, severe)
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APASmart Define. (2016). forbidding thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/forbidding/thesaurus/synonyms
ChicagoSmart Define. 2016. "forbidding thesaurus" https://smartdefine.org/forbidding/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, forbidding thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/forbidding/thesaurus/synonyms>.
MLASmart Define. "forbidding thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/forbidding/thesaurus/synonyms>