Noun
wistfulness (usually uncountable, plural wistfulnesses)
The state or characteristic of being wistful.
That vision of a common culture is now simply a remote wistfulness. Dennis Potter
Our true hearts are forever lonely: A wistfulness is in our thought: Our lights are like the dawns which only Seem bright to us and yet are not. George William Russell
A certain cynicism, born of the life she has led; a streak of strange wisdom; the wistfulness behind the gaiety; sometimes fear; and nearly always the memory of loneliness that hurts the soul. Georgette Heyer
There's a Welsh word, "hiraeth" which, roughly translated, means a homesickness affected with yearning, longing, nostalgia, and wistfulness for a place that was, or might never have existed except in one's imagination. Source: Internet
Jim had loved her, she knew, more than she had loved him, but she couldn’t believe he harbored at this remove anything more than passing wistfulness for their ardent youthful selves. Source: Internet
He said it quietly, with a hint of something that sounded like doubt, or maybe it was wistfulness. Source: Internet