54 entries under problematical topic. ×

2
merciless(adjective, tough, severe, rough, difficult)
2
operose(adjective, tough, severe, rough, difficult)
2
testing(adjective, tough, severe, difficult, violent)
1
irksome(adjective, dull, difficult, heavy, awkward)
1
labored(adjective, hard, tough, severe, difficult)
1
murder(adjective, hard, tough, severe, rough)
1
serious(adjective, hard, tough, difficult, harsh)
1
sticky(adjective, tough, rough, difficult, heavy)
1
toilful(adjective, tough, rough, difficult, heavy)
0
involved(adjective, tough, rough, difficult, heavy)
0
scabrous(adjective, tough, rough, difficult, heavy)
0
slavish(adjective, tough, rough, difficult, heavy)
0
terrible(adjective, tough, rough, difficult, heavy)
0
uphill battle(expression, adjective, tough, rough, difficult)
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APASmart Define. (2015). demanding thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/demanding/thesaurus/synonyms
ChicagoSmart Define. 2015. "demanding thesaurus" https://smartdefine.org/demanding/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, demanding thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/demanding/thesaurus/synonyms>.
MLASmart Define. "demanding thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/demanding/thesaurus/synonyms>