unarguably
adverb/ʌnˈɑːɡjuəbli/
/ʌnˈɑːrɡjuəbli/
(formal)- in a way that nobody can disagree with
- She is unarguably one of the country's finest athletes.
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unarguably
Definition of unarguably adverb from the Oxford Advanced Learner's Dictionary