156 entries under adjective topic. ×

1
exasperating(dull, boring, tired, tedious)
1
flat(dull, boring, tedious, irritating)
1
hairy(hard, tough, severe, rough)
1
headache(difficult, heavy, cruel, arduous)
1
ho-hum(dull, boring, tired, tedious)
1
humdrum(dull, boring, tedious, irritating)
1
intricate(tough, severe, difficult, awkward)
1
jading(dull, boring, tired, tedious)
1
mean(hard, rough, difficult, heavy)
1
monotonous(dull, boring, tedious, irritating)
1
murder(hard, great, tough, rough)
1
nasty
1
nowhere(dull, boring, tedious, irritating)
1
overtaxing(difficult, heavy, arduous, burdensome)
1
overwhelming
1
plodding
1
racking
1
responsible
1
sticky(tough, rough, difficult, heavy)
1
stodgy
11 years ago|15k views|share |citing 
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>