Synonyms|393Antonyms|104|Broader|10Narrower|7Related|1.1k
1
killing
1
laboriously
1
laboured
1
lumpish
1
malevolent
1
malign
1
massive
1
mean(adjective, hard, rough, difficult, heavy)
1
mighty
1
monotonous(adjective, dull, boring, tedious, irritating)
1
murder(adjective, hard, great, tough, rough)
1
nasty
1
no picnic(hard, tough, severe, difficult, painful)
1
not easy(expression, idiom, tough, severe, difficulty)
1
nowhere(adjective, dull, boring, tedious, irritating)
1
obtrusive
1
onerously
1
overburdensome
1
overtaxing(adjective, difficult, heavy, arduous, burdensome)
1
overwhelming
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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>