irrefutable
adjectiveNAmE//ˌɪrɪˈfyut̮əbl//, NAmE//ɪˈrɛfyət̮əbl//
(formal)NAmE//ˌɪrɪˈfyut̮əbli//, NAmE//ɪˈrɛfyət̮əbli//
adverbSee irrefutable in the Oxford Advanced Learner's DictionaryCheck pronunciation: irrefutable
Definition of irrefutable adjective from the Oxford Advanced American Dictionary