237 entries under adjective topic. ×

6
hardworking(work, labour, multitask)
6
indefatigable
6
persevering
6
rigorous(hard, tough, severe, rough)
6
ticklish
5
active
5
back-breaking
5
labourious(work, labour, multitask)
5
tireless
4
cumbersome
4
dull(heavy, boring, tedious, dreary)
4
fussy(tough, difficult, problematic, trying)
4
harsh
4
irksome(dull, difficulty, difficult, awkward)
4
unflagging
3
awkward(difficult, heavy, demanding, weighty)
3
boring(dull, tired, tedious, dreary)
3
bothersome(tough, severe, difficult, awkward)
3
cantankerous
3
challenging(great, tough, severe, difficult)
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APASmart Define. (2016). laborious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/laborious/thesaurus/synonyms
ChicagoSmart Define. 2016. "laborious thesaurus" https://smartdefine.org/laborious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, laborious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/laborious/thesaurus/synonyms>.
MLASmart Define. "laborious thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/laborious/thesaurus/synonyms>