- peculiar to or characteristic of a particular language or dialect: idiomatic French.
- containing or using many idioms.
- having a distinct style or character, especially in the arts: idiomatic writing; an idiomatic composer.
Origin of idiomatic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Word Origin and History for idiomaticity
Online Etymology Dictionary, © 2010 Douglas Harper