what does idiomatically mean
: an expression that cannot be understood from the meanings of its separate words but that has a separate meaning of its own. : a form of a language that is spoken in a particular area and that uses some of its own words, grammar, and pronunciations. an expression in the usage of a language that is peculiar to itself either grammatically (as no, it wasn't me) or in having a meaning that cannot be derived from the conjoined meanings of its elements (as ride herd on for âsuperviseâ). 3. See idiom defined for English-language learners.