Synonyms|554Antonyms|82|Broader|1Narrower|5Related|175
1
contemplating(verb, questioning)
1
contemptuous
1
contravening(verb, defying)
1
counteractive(adjective, counteractive)
1
countermanding(verb, defying)
1
courageous
1
cross-examining(verb, questioning)
1
crucial(tough, severe, painful, problematic, trying)
1
daredevil(noun, adjective)
1
dashing(noun, adjective)
1
debating(verb, questioning)
1
defy
1
delicate
1
delving(verb, questioning)
1
derisive
1
differing(verb, disagreeing)
1
difficile(adjective, tough, severe, difficult, awkward)
1
disaffirming(verb, confuting)
1
disavowing(verb, confuting)
1
disdainful
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APASmart Define. (2016). challenging thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/challenging/thesaurus/synonyms
ChicagoSmart Define. 2016. "challenging thesaurus" https://smartdefine.org/challenging/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, challenging thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/challenging/thesaurus/synonyms>.
MLASmart Define. "challenging thesaurus" 2 March 2016. Web. 22 September 2026. <https://smartdefine.org/challenging/thesaurus/synonyms>