unfathomable adjective - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of unfathomable adjective from the Oxford Advanced American Dictionary

unfathomable

adjective

NAmE//ʌnˈfæðəməbl//

(formal)

1too strange or difficult to be understood an unfathomable mystery

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2if someone has an unfathomable expression, it is impossible to know what they are thinking

See unfathomable in the Oxford Advanced Learner's Dictionary

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