idiomatic

His idiomatic lust for control is to be accepted as a root-fact of his peculiar type of being.

In ‘Henry V’ the dialogue in many scenes is carried on in French, which is grammatically accurate if not idiomatic.

Idiomatic; root unknown to me, but it means in this use, fall total, and without recovery.

This pretty dance, with its idiomatic English, which comes to us from the extreme South, is obviously not modern.