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

84 entries under tough topic. ×

3
not easy(expression, idiom, severe, difficulty)
3
tiresome(adjective, hard, severe, difficult)
2
difficile(adjective, severe, rough, difficult)
1
backbreaker(hard, severe, difficult, painful)
1
crucial(adjective, severe, deep, painful)
1
dangerous(adjective, severe, deep, grim)
1
easier said than done(expression, severe, painful, problematic)
1
galling(severe, harsh, heavy, painful)
1
grim(severe, problematic, weighty, trying)
1
hard-won(severe, painful, problematic, trying)
1
immense(severe, painful, problematic, trying)
1
merciless(adjective, severe, rough, difficult)
1
murder(adjective, hard, great, severe)
1
nagging(adjective, hard, difficult, painful)
1
problem(severe, painful, problematic, trying)
1
prohibitive(severe, painful, problematic, trying)
1
rigid(adjective, hard, severe, rough)
1
strict(adjective, hard, severe, rough)
1
testing(adjective, severe, difficult, violent)
1
unsparing(adjective, rough, difficult, harsh)
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ChicagoSmart Define. 2016. "arduous thesaurus" https://smartdefine.org/arduous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, arduous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/arduous/thesaurus/synonyms>.
MLASmart Define. "arduous thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/arduous/thesaurus/synonyms>