99 entries under hard topic. ×

19
serious(adjective, difficult, big, heavy)
19
stodgy(adjective, difficult, complex)
18
troublesome(adjective, severe, difficult, heavy)
18
drudgery(noun, adjective, difficult, complex)
18
grave(adjective, difficult, complex)
18
hard to bear(expression, adjective, idiom, difficult)
18
involved(adjective, difficult, complex, awkward)
18
sticky(adjective, difficult, complex, awkward)
18
toilful(adjective, difficult, complex, awkward)
18
troubled(adjective, difficult, complex)
14
demanding(adjective, dull, tough, severe)
11
distressing(adjective, rough, difficult, heavy)
9
exacting(adjective, dull, tough, severe)
6
rigorous(adjective, severe, rough, difficult)
6
worrisome(adjective, severe, upsetting, disturbing)
5
grueling(adjective, tough, severe, difficult)
5
tiresome(adjective, severe, heavy, irritating)
5
worrying(adjective, severe, offensive, heavy)
4
impeding(adjective, severe, offensive, distressing)
4
tedious(adjective, dull, rough, boring)
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APASmart Define. (2015). burdensome thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/burdensome/thesaurus/synonyms
ChicagoSmart Define. 2015. "burdensome thesaurus" https://smartdefine.org/burdensome/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, burdensome thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/burdensome/thesaurus/synonyms>.
MLASmart Define. "burdensome thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/burdensome/thesaurus/synonyms>