54 entries under problematical topic. ×

46
difficult(adjective, dull, hard, tough, severe)
40
arduous(adjective, dull, hard, tough, severe)
38
hard(adjective, dull, severe, rough, difficult)
36
laborious(adjective, dull, hard, tough, severe)
34
onerous(adjective, dull, hard, tough, severe)
34
severe(adjective, hard, tough, rough, difficult)
30
toilsome(adjective, hard, tough, difficult, complex)
25
rugged(adjective, hard, severe, rough, difficult)
23
rough(adjective, hard, severe, difficult, heavy)
22
backbreaking(adjective, hard, difficult, heavy, cruel)
22
grinding(adjective, hard, difficult, cruel, complex)
22
operose(adjective, hard, tough, difficult, complex)
21
complicated(adjective, hard, difficult, complex, awkward)
21
knotty(adjective, hard, difficult, complex, awkward)
21
tricky(adjective, hard, difficult, complex, awkward)
19
intricate(adjective, hard, difficult, complex, awkward)
19
serious(adjective, hard, difficult, big, heavy)
18
troublesome(adjective, hard, severe, difficult, heavy)
18
heavy(adjective, dull, tough, severe, difficult)
18
involved(adjective, hard, difficult, complex, awkward)
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APASmart Define. (2015). burdensome thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/burdensome/thesaurus/synonyms
ChicagoSmart Define. 2015. "burdensome thesaurus" https://smartdefine.org/burdensome/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, burdensome thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/burdensome/thesaurus/synonyms>.
MLASmart Define. "burdensome thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/burdensome/thesaurus/synonyms>