62 entries under problematic topic. ×

43
laborious(adjective, hard, great, tough, difficulty)
41
arduous(adjective, hard, great, tough, difficulty)
37
difficult(adjective, hard, great, tough, difficulty)
32
burdensome(adjective, hard, tough, difficult, complex)
27
operose(adjective, hard, tough, difficulty, difficult)
27
severe(adjective, hard, tough, difficult, harsh)
18
onerous(adjective, hard, great, tough, difficulty)
17
strenuous(adjective, hard, great, tough, severe)
17
uphill(adjective, hard, great, tough, difficult)
12
wearisome(adjective, hard, tough, severe, difficult)
11
heavy(adjective, tough, severe, difficult, harsh)
11
troublesome(adjective, hard, tough, severe, difficulty)
10
demanding(adjective, hard, tough, severe, difficult)
10
formidable(adjective, tough, severe, difficulty, difficult)
10
grueling(adjective, hard, tough, severe, difficult)
9
tiring(adjective, hard, tough, severe, rough)
7
effortful(adjective, hard, great, tough, severe)
6
labored(adjective, hard, great, tough, difficult)
5
stiff(adjective, tough, severe, difficult, painful)
4
exacting(adjective, tough, severe, difficult, harsh)
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APASmart Define. (2015). toilsome thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/toilsome/thesaurus/synonyms
ChicagoSmart Define. 2015. "toilsome thesaurus" https://smartdefine.org/toilsome/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, toilsome thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/toilsome/thesaurus/synonyms>.
MLASmart Define. "toilsome thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/toilsome/thesaurus/synonyms>