Synonyms|393Antonyms|104|Broader|10Narrower|7Related|1.1k
2
challenging(adjective, hard, great, tough, severe)
2
contrary(adjective, difficult)
2
distressful
2
disturbing(adjective, hard, severe, difficult, offensive)
2
forced
2
grave(adjective, difficult)
2
grim(tough, problematic, trying)
2
harrowing
2
hefty(adjective, dull, cruel, boring, tired)
2
impeding(hard, severe, offensive, distressing, upsetting)
2
powerful
2
pressing(adjective, difficult)
2
stern
2
stiff(adjective, tough, severe, difficult, painful)
2
superincumbent(difficult, heavy, cruel, demanding, troublesome)
2
titanic(tough, severe, painful, problematic, trying)
2
troubling(hard, severe, offensive, distressing, upsetting)
2
unbearable
2
upsetting(adjective, hard, severe, offensive, awful)
2
worrisome(adjective, hard, severe, difficult, offensive)
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APASmart Define. (2015). onerous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/onerous/thesaurus/synonyms
ChicagoSmart Define. 2015. "onerous thesaurus" https://smartdefine.org/onerous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, onerous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/onerous/thesaurus/synonyms>.
MLASmart Define. "onerous thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/onerous/thesaurus/synonyms>