adjective Pertaining or conforming to idiom, the natural mode of expression of a language.
The inclusion or omission of definite articles follows idiomatic norms in each language and depends on context and intent.
adjective Resembling or characteristic of an idiom.
An idiomatic phrase that warns us against Pollyannaism is "don't count your chickens before they're hatched".
adjective Using many idioms.
adjective Relating to parts or pieces which are written both within the natural physical limitations of the instrument and human body and, less so or less often, the styles of playing used on specific instruments.
adjective Following the conventions of the language, or doing things in the common way for the language, rather than code that is ported from another language and therefore may not follow the common conventions.