Synonyms|576Antonyms|153|Broader|11Narrower|9Related|1.1k

95 entries under tough topic. ×

2
worrying(adjective, severe, important, significant)
1
backbreaker(severe, painful, problematic, trying)
1
crucial(severe, painful, problematic, weighty)
1
deep(adjective, severe, difficult, important)
1
dismaying(hard, great, severe, difficult)
1
easier said than done(expression, severe, painful, problematic)
1
far-reaching(adjective, severe, important, significant)
1
fateful(adjective, severe, important, significant)
1
galling(severe, harsh, heavy, painful)
1
gargantuan(strong, severe, powerful, painful)
1
grim(severe, problematic, weighty, trying)
1
hard-won(severe, painful, problematic, trying)
1
immense(severe, painful, problematic, trying)
1
meaning business(expression, adjective, severe, important)
1
meaningful(adjective, severe, important, significant)
1
merciless(adjective, severe, rough, difficult)
1
murder(adjective, hard, great, severe)
1
no joke(expression, adjective, severe, important)
1
no laughing matter(expression, adjective, idiom, severe)
1
of consequence(expression, adjective, severe, important)
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APASmart Define. (2016). laborious thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/laborious/thesaurus/synonyms
ChicagoSmart Define. 2016. "laborious thesaurus" https://smartdefine.org/laborious/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, laborious thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/laborious/thesaurus/synonyms>.
MLASmart Define. "laborious thesaurus" 26 February 2016. Web. 29 September 2026. <https://smartdefine.org/laborious/thesaurus/synonyms>