210 entries under idiom topic. ×

2
raise a question(expression, unbelief doubt)
2
raise objection
2
smell a rat(expression, dispute, doubt, question)
2
stick it out(verb, expression, phrasal verb, dispute)
2
summons to contest(noun, expression, dispute, question)
2
sweat it out of(verb, expression, examine, seek)
2
take a flyer(expression, set, advance, try)
2
throw doubt upon(verb, expression, phrasal verb, unbelief doubt)
2
war cry(expression, defiance)
2
war whoop(expression, defiance)
1
pit oneself against(expression, play, fight, face)
1
be contrary to
1
bid to combat
1
bit the bullet(verb, expression, take, meet)
1
bringing into question
1
buck the odds(expression, set, speculate, bet)
1
carry on war(expression, meet, attack, dispute)
1
cast aspersions on(expression, charge, accuse, indict)
1
cast aspersions upon(expression, criticize, dispute, doubt)
1
cast doubt on(expression, charge, doubt, question)
10 years ago|29k views|share |citing 
APASmart Define. (2016). challenge thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/challenge/thesaurus/synonyms
ChicagoSmart Define. 2016. "challenge thesaurus" https://smartdefine.org/challenge/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, challenge thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/challenge/thesaurus/synonyms>.
MLASmart Define. "challenge thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/challenge/thesaurus/synonyms>