67 entries under tough topic. ×

3
disagreeable(adjective, hard, severe, rough)
3
exigent(adjective, hard, difficult, harsh)
3
harsh(adjective, hard, rough, difficult)
2
bleak(adjective, severe, harsh, cruel)
2
critical(adjective, hard, great, difficult)
2
demanding(hard, difficult, harsh, cruel)
2
exacting(adjective, hard, severe, difficult)
2
fell(adjective, severe, unpleasant, heavy)
2
formidable(adjective, severe, difficult, unpleasant)
2
grim(adjective, severe, sad, harsh)
2
important(adjective, great, severe, heavy)
2
significant(adjective, great, severe, heavy)
2
threatening(adjective, severe, unpleasant, heavy)
1
acrimonious(adjective, severe, harsh, cruel)
1
antagonistic(adjective, severe, harsh, cruel)
1
crucial(adjective, great, severe, heavy)
1
dour(adjective, severe, harsh, unpleasant)
1
hostile(adjective, severe, harsh, cruel)
1
inclement(adjective, severe, harsh, unpleasant)
1
intemperate(adjective, severe, harsh, unpleasant)
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APASmart Define. (2016). grievous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/grievous/thesaurus/synonyms
ChicagoSmart Define. 2016. "grievous thesaurus" https://smartdefine.org/grievous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, grievous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/grievous/thesaurus/synonyms>.
MLASmart Define. "grievous thesaurus" 26 February 2016. Web. 29 September 2026. <https://smartdefine.org/grievous/thesaurus/synonyms>