Synonyms|132Antonyms|7|Broader|1Narrower|0Related|63
12
laborious(adjective, tiresome)
11
arduous(adjective, tiresome)
11
exhausting
11
hard(adjective, tiresome)
11
strenuous(adjective, tiresome)
10
backbreaking
9
grueling
7
difficult
7
onerous(adjective, tiresome)
7
operose
7
punishing
6
heavy
6
toilsome
6
burdensome
6
tiring
5
straining
5
tough
4
effortful
4
grinding
4
labored
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APASmart Define. (2016). gruelling thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/gruelling/thesaurus/synonyms
ChicagoSmart Define. 2016. "gruelling thesaurus" https://smartdefine.org/gruelling/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, gruelling thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/gruelling/thesaurus/synonyms>.
MLASmart Define. "gruelling thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/gruelling/thesaurus/synonyms>