IDIOMATIC Meaning of IDIOMATIC in English [id.i.o.mat.ic] adj (1712) 1: of, relating to, or conforming to idiom 2: peculiar to a particular group, individual, or style -- id.i.o.mat.i.cal.ly adv -- id.i.o.mat.ic.ness n Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012