Synonyms|800Antonyms|435|Broader|9Narrower|3Related|1.5k
3
uphill(adjective, difficult, laborious)
2
abstruse
2
adverse
2
ambitious(adjective, ability, effort)
2
burdensome
2
choosy
2
coldblooded(bright, cheerful)
2
complex
2
confusing
2
deep
2
demanding
2
detailed
2
effortful
2
exacting
2
exhausting
2
exhaustive
2
formidable
2
grueling
2
hard to please
2
heavy
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ChicagoSmart Define. 2016. "facile thesaurus" https://smartdefine.org/facile/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, facile thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/facile/thesaurus/antonyms>.
MLASmart Define. "facile thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/facile/thesaurus/antonyms>