The word "wideness" is correct and usable in written English.
It is a noun that refers to the state of being wide or having a wide extent or breadth. It can also mean the quality or condition of being expansive or open. Example: The wideness of the ocean filled her with a sense of awe and insignificance.
The narrator has already remarked on the wideness of the character's smile (hence the "that" in "that stunning, wide smile") and is intensifying its attractiveness at the second reference.
Perhaps most of all it is a foray into the workings of a poet's mind, a "journey into the wideness of language", as he said in a speech accepting the Nobel prize.
The German attack on Liège had awakened Joffre to the reality of a German advance through Belgium, but not to its strength or to the wideness of its sweep.
This in turn became a journey into the wideness of language, a journey where each point of arrival – whether in one's poetry or one's life – turned out to be a stepping stone rather than a destination, and it is that journey which has brought me now to this honoured spot".
Overhearing fragments of foreign sentences, he said, as the dial was moved from one accustomed station to another, 'I had already begun a journey into the wideness of the world.
He continued: "And even though I didn't understand what was being said in those first encounters with the gutturals and sibilants of European speech, I had already begun my journey into the wideness of the world.
This, in turn, became a journey into the wideness of language".
Too old for starting over, too young for giving up... Sometimes I think that if I had people I bantered about with, they'd nickname me CHIEF for the wideness of my face and the way I wear my womanly hair, for the watery longing in my wonkety eyes.
I read it for the fourth time in my 40s, just before Christmas, this time slowing down to take in the lengthy battle scenes, to relish the wideness of Tolstoy's vision and the detail.
In a small house, tucked a few narrow alleys away from a busy street in Kampala, Frank Mugisha leans forwards in his chair and places his hands on his desk, the wideness of which emphasises his own slight frame.
Although the camera has a built-in optical stabilizer, the picture's wideness seems to magnify the effect of hand-held jitters; for maximum "ooh" factor, use a tripod.
