wistful

adjective
UK /ˈwɪst.fəl/
US /ˈwɪst.fəl/

Feeling a little sad because you remember something happy from the past.

She gave a wistful smile as she looked at old photos of her childhood.


OTHER MEANINGS

2. Showing a quiet, gentle sadness in your face or voice.

He spoke in a wistful voice about the friends he had left behind.

3. Wanting something you cannot have, in a soft and quiet way.

The dog watched the birds with a wistful look, wishing it could fly.

4. Full of gentle thoughts about something far away or long ago.

Her wistful daydreams carried her back to summer days at the lake.