Wording, n.
The act or manner of expressing in words; style of expression; phrasing. It is believed this wording was above his known style. Milton.
Shades of meaning
Fernald has no entry of its own for wording; he lists it under diction.
Where he writes about it:
Diction is general; wording is limited; we speak of the diction of an author or of a work, the wording of a proposition, of a resolution, etc. — from diction
Antonyms
none given