wistful
adjective
[ ˈwɪs(t)fʊl ]
• having or showing a feeling of vague or regretful longing.
• "a wistful smile"
Similar:
regretful,
nostalgic,
yearning,
longing,
plaintive,
rueful,
melancholy,
sad,
mournful,
forlorn,
disconsolate,
woebegone,
doleful,
pensive,
reflective,
contemplative,
meditative,
dreamy,
daydreaming,
in a reverie,
Origin:
early 17th century: apparently from obsolete wistly ‘intently’, influenced by wishful.