3
cramping(adjective, painful)
3
crashing(adjective, awful, terrible, horrible, afraid)
3
darn(adjective, awful, terrible, horrible, afraid)
3
deadly(adjective, awful, terrible, horrible, afraid)
3
deuced(adjective, awful, terrible, horrible, afraid)
3
distressful(adjective, painful)
3
doggone(adjective, awful, terrible, horrible, afraid)
3
dread(adjective, awful, terrible, horrible, afraid)
3
dreaded(adjective, awful, terrible, horrible, afraid)
3
dreadful(adjective, awful, terrible, horrible, afraid)
3
enormous(adjective, awful, terrible, horrible, afraid)
3
execrable(adjective, awful, terrible, horrible, afraid)
3
fearful(adjective, awful, terrible, horrible, afraid)
3
ferocious(adjective, awful, terrible, horrible, afraid)
3
flagitious(adjective, awful, terrible, horrible, afraid)
3
frightening(adjective, awful, terrible, horrible, afraid)
3
frightful(adjective, awful, terrible, horrible, afraid)
3
gnawing(adjective, painful)
3
god awful(adjective, awful, terrible, horrible, afraid)
3
gross(adjective, awful, terrible, horrible, afraid)
11 years ago|12k views|share |citing 
APASmart Define. (2015). grueling thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/grueling/thesaurus/synonyms
ChicagoSmart Define. 2015. "grueling thesaurus" https://smartdefine.org/grueling/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, grueling thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/grueling/thesaurus/synonyms>.
MLASmart Define. "grueling thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/grueling/thesaurus/synonyms>