78 entries under heavy topic. ×

46
difficult(adjective, dull, hard, tough, severe)
40
arduous(adjective, dull, hard, tough, severe)
38
hard(adjective, dull, severe, rough, difficult)
37
tough(adjective, dull, hard, difficult, harsh)
36
laborious(adjective, dull, hard, tough, severe)
36
oppressive(adjective, dull, hard, severe, rough)
34
onerous(adjective, dull, hard, tough, severe)
34
severe(adjective, hard, tough, rough, difficult)
33
taxing(adjective, hard, difficult, complex)
33
weighty(adjective, hard, difficult, complex)
29
trying(adjective, dull, hard, tough, difficult)
24
ponderous(adjective, hard, difficult, complex)
23
hefty(adjective, dull, hard, difficult, big)
23
leaden(adjective, hard, difficult, complex)
23
rough(adjective, hard, severe, difficult)
22
backbreaking(adjective, hard, difficult, cruel)
19
heavyweight(adjective, hard, difficult, complex)
19
serious(adjective, hard, difficult, big)
18
troublesome(adjective, hard, severe, difficult)
18
heavy(adjective, dull, tough, severe, difficult)
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APASmart Define. (2015). burdensome thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/burdensome/thesaurus/synonyms
ChicagoSmart Define. 2015. "burdensome thesaurus" https://smartdefine.org/burdensome/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, burdensome thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/burdensome/thesaurus/synonyms>.
MLASmart Define. "burdensome thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/burdensome/thesaurus/synonyms>