8
harmful(adjective, severe, painful)
8
heartbreaking(adjective, mean, poor, low, sad)
8
intolerable(adjective, hard, tough, severe, rough)
8
offensive(adjective, severe, unpleasant, awful, terrible)
8
onerous(adjective, hard, severe, difficult, harsh)
8
piercing(adjective, painful, sickness, ache, anguishes)
8
tearful(adjective, bad, sad, sorrow, depression)
8
throbbing(adjective, painful, sickness, ache, anguishes)
8
unhappy(adjective, sad, sorrow, depression, suffer)
7
acute(adjective, heavy, painful, major, dangerous)
7
biting(adjective, painful, sickness, ache, anguishes)
7
burning(adjective, painful, sickness, ache, anguishes)
7
catastrophic(adjective, sad, unhappy, awful, terrible)
7
dark(adjective, bad, tough, severe, sad)
7
egregious(adjective, bad, severe, painful)
7
extreme(adjective, painful, sickness, ache, anguishes)
7
gross(adjective, awful, terrible, horrible, obvious)
7
hideous(adjective, awful, terrible, horrible, afraid)
7
iniquitous(unreasonable, improper, atrocious, unwarranted, prejudiced)
7
joyless(adjective, sad, pain, sorrow, depression)
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APASmart Define. (2016). grievous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/grievous/thesaurus/synonyms
ChicagoSmart Define. 2016. "grievous thesaurus" https://smartdefine.org/grievous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, grievous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/grievous/thesaurus/synonyms>.
MLASmart Define. "grievous thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/grievous/thesaurus/synonyms>