69 entries under demanding topic. ×

1
murder(adjective, hard, great, tough, severe)
1
rigid(adjective, hard, tough, severe, rough)
1
unyielding(adjective, hard, tough, severe, grim)
0
excruciating(tender, raw, burning, sore)
0
problematical(adjective, difficult, awkward, grueling)
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scabrous(adjective, tough, rough, difficult, heavy)
0
solemn(adjective, hard, severe, rough, difficult)
0
stern(adjective, hard, severe, rough, difficult)
0
uphill battle(expression, adjective, tough, rough, difficult)
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APASmart Define. (2016). laborious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/laborious/thesaurus/synonyms
ChicagoSmart Define. 2016. "laborious thesaurus" https://smartdefine.org/laborious/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, laborious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/laborious/thesaurus/synonyms>.
MLASmart Define. "laborious thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/laborious/thesaurus/synonyms>