18
drudgery(noun, adjective, hard, difficult, complex)
18
heavyweight(adjective, hard, difficult, complex)
18
messy(adjective, hard, difficult, unpleasant, complex)
18
stressful(adjective, hard, difficult, complex)
18
stubborn(adjective, hard, tough, difficult, harsh)
18
toilsome(adjective, hard, difficult, complex)
18
troubled(adjective, hard, difficult, complex)
17
wretched(adjective, mean, rough, poor, low)
16
appalling(adjective, severe, awful, terrible, horrible)
16
atrocious(adjective, severe, awful, terrible, horrible)
16
dismal(adjective, bad, severe, sad, pain)
16
dolorous(adjective, happy, sad, unhappy, sorrow)
16
heinous(adjective, severe, awful, terrible, horrible)
16
monstrous(adjective, severe, awful, terrible, horrible)
15
terrible(adjective, strong, severe, sad, tender)
14
agonizing(adjective, severe, painful, sickness, ache)
14
doleful(adjective, bad, happy, sad, sorrow)
14
pathetic(adjective, severe, sad, pain, sorrow)
14
pitiful(adjective, mean, severe, poor, low)
13
bitter(adjective, hard, tough, rough, harsh)
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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>