Synonyms|770Antonyms|212|Broader|7Narrower|18Related|1.5k

153 entries under difficult topic. ×

1
effortful(adjective, hard, tough, severe, rough)
1
exhausting(adjective, complete, rough, exact)
1
fatiguing(adjective, tough, rough, heavy)
1
hidden(adjective, hard, evil, obscure)
1
irksome(adjective, tough, rough, heavy)
1
labored(adjective, fancy, exact, heavy)
1
mean(adjective, tough, rough, heavy)
1
merciless(adjective, tough, rough, heavy)
1
mixed(adjective, obscure, complex, sophisticated)
1
muddled(verb, adjective, obscure, complex)
1
murder(adjective, tough, rough, heavy)
1
mystifying(adjective, hard, evil, complex)
1
problematical(adjective, hard, complex, awkward)
1
rigorous(adjective, tough, rough, heavy)
1
scabrous(adjective, tough, rough, heavy)
1
slavish(adjective, tough, rough, heavy)
1
terrible(adjective, tough, rough, heavy)
1
tiring(adjective, tough, rough, heavy)
1
unsparing(adjective, tough, rough, heavy)
1
uphill battle(expression, adjective, tough, rough)
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HarvardSmart Define 2016, complicated thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/complicated/thesaurus/synonyms>.
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