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English definition of “unfathomable”

unfathomable

adjective     /ʌnˈfæð.ə.mə.bl̩/ formal
impossible to understand: For some unfathomable reason they built the toilet next to the kitchen.Difficult to understandComplicated and difficult to doPuzzle and confuse unfathomably     /-bli/ adverb formal
(Definition of unfathomable adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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