Wistful

adjective/wis-tfuhl/

Meaning

having or showing a feeling of vague or regretful longing.

In context
She gave a wistful glance at the old photos.

Remember it

Wistful sounds like 'wish-full'—full of quiet wishes for something you long for or miss.

Use it well

Describes looks, sighs or smiles tinged with gentle regret; pair with 'gaze', 'look' or 'sigh'.