Synonyms|554Antonyms|82|Broader|1Narrower|5Related|175
2
burdensome(adjective, tough, severe, difficult, awkward)
2
challenge
2
contemplative(adjective, questioning)
2
contending(verb, adjective, rival, opposing, disagreeing)
2
contesting(verb, opposing, competing)
2
contradictory(adjective, oppositional, counteractive)
2
countering(verb, opposing, defying)
2
demurring(verb, disagreeing)
2
denying(verb, confuting)
2
disagreeing(verb, opposing, disagreeing)
2
effortful(adjective, great, tough, severe, difficult)
2
encouraging
2
energizing
2
exacting(adjective, hard, tough, severe, difficult)
2
facing(verb, confronting, defying)
2
gripping
2
impugning
2
inquisitive(adjective, curious, questioning)
2
insubordinate(adjective, defiant)
2
meddling(verb, opposing, counteracting)
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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>