wistful

/ˈwɪstfəl/
adjective
  1. Feeling or showing a sad, gentle longing for something in the past or for something that is unlikely to happen.
    • The song had a wistful melody that reminded me of summers long gone.
    • She gave a wistful smile as she looked at old photographs of her childhood home.
    • His wistful gaze out the window made everyone wonder what he was thinking about.
Antonyms
What does "wistful" mean? | whatsthatwordmean | whatsthatwordmean