Synonyms|643Antonyms|183|Broader|10Narrower|12Related|1.3k

67 entries under problematic topic. ×

9
wearisome(adjective, dull, tough, severe, difficult)
8
stiff(adjective, hard, tough, severe, rough)
7
effortful(adjective, hard, great, tough, rough)
6
distressing(adjective, difficult, harsh, tender, cruel)
5
Herculean(adjective, tough, severe, difficult, awkward)
5
irritating(adjective, dull, tough, severe, boring)
5
labored(adjective, hard, great, tough, rough)
4
awkward(adjective, difficult, demanding, grueling)
4
bothersome(adjective, hard, tough, severe, difficult)
4
challenging(adjective, hard, great, tough, severe)
4
titanic(tough, severe, painful, trying)
3
finicky(adjective, tough, difficult, trying)
3
fussy(adjective, hard, tough, difficult)
3
gargantuan(tough, severe, painful, trying)
3
not easy(expression, idiom, tough, severe, difficulty)
2
difficile(adjective, tough, severe, rough, difficult)
1
backbreaker(hard, tough, severe, difficult, painful)
1
crucial(adjective, tough, severe, deep, painful)
1
easier said than done(expression, tough, severe, painful)
1
galling(tough, severe, harsh, heavy, painful)
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APASmart Define. (2016). arduous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/arduous/thesaurus/synonyms
ChicagoSmart Define. 2016. "arduous thesaurus" https://smartdefine.org/arduous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, arduous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/arduous/thesaurus/synonyms>.
MLASmart Define. "arduous thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/arduous/thesaurus/synonyms>