156 entries under adjective topic. ×

2
hefty(dull, cruel, boring, tired)
2
pressing
2
stiff(tough, severe, difficult, painful)
2
unbearable
2
upsetting(hard, severe, offensive, awful)
2
worrisome(hard, severe, difficult, offensive)
2
worrying(hard, severe, difficult, offensive)
1
austere
1
boresome(dull, boring, tired, tedious)
1
brutal
1
deep
1
dense
1
depressing(hard, severe, offensive, cruel)
1
difficile(tough, severe, rough, difficult)
1
discouraging(hard, severe, offensive, cruel)
1
drag(dull, boring, tired, tedious)
1
dragging(dull, boring, tired, tedious)
1
drudging(dull, boring, tired, tedious)
1
dull(heavy, boring, tedious, weighty)
1
enervative(dull, boring, tired, tedious)
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APASmart Define. (2015). onerous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/onerous/thesaurus/synonyms
ChicagoSmart Define. 2015. "onerous thesaurus" https://smartdefine.org/onerous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, onerous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/onerous/thesaurus/synonyms>.
MLASmart Define. "onerous thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/onerous/thesaurus/synonyms>