challenge Synonyms - page 3

ultimatum undercut vie ask for trouble ask for take on call out inspection wrestle withsay whereto waylay war stumper oppugnation disagree counterwork counter conundrum controvert controversy contraversion contraposition contradict contestation contention cross-examine cut-off disaffirm dilemma deny denunciate demurrer demurral demur demand defy defiance contend confute confutation beard bay barrier bandy ask argument argufy appeal anagram