Synonyms|554Antonyms|82|Broader|1Narrower|5Related|175

260 entries under adjective topic. ×

3
repelling(verb, opposing, oppositional)
3
repressing(verb, opposing, oppositional)
3
repulsing(verb, opposing, oppositional)
3
rough(great, tough, difficult, terrible)
3
suppressing(verb, opposing, oppositional)
3
trying(hard, tough, severe, difficult)
2
awkward(difficult, contrary, demanding, tricky)
2
brazen
2
burdensome(tough, severe, difficult, awkward)
2
contemplative
2
contending(verb, rival, opposing, disagreeing)
2
contradictory(oppositional, counteractive)
2
effortful(great, tough, severe, difficult)
2
exacting(hard, tough, severe, difficult)
2
inquisitive(curious, questioning)
2
insubordinate
2
obstinate
2
onerous(hard, great, tough, severe)
2
probing(verb, questioning)
2
problematical(difficult, awkward, demanding, tricky)
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APASmart Define. (2016). challenging thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/challenging/thesaurus/synonyms
ChicagoSmart Define. 2016. "challenging thesaurus" https://smartdefine.org/challenging/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, challenging thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/challenging/thesaurus/synonyms>.
MLASmart Define. "challenging thesaurus" 2 March 2016. Web. 23 September 2026. <https://smartdefine.org/challenging/thesaurus/synonyms>