WISTFUL
pensive, wistful
(adjective) showing pensive sadness; “the sensitive and wistful response of a poet to the gentler phases of beauty”
Source: WordNet® 3.1
Etymology
Adjective
wistful (comparative more wistful, superlative most wistful)
Full of longing or yearning.
Sad and thoughtful.
Source: Wiktionary
Wist"ful, a. Etym: [For wishful; perhaps influenced by wistly, which
is probably corrupted from OE. wisly certainly (from Icel. viss
certain, akin to E. wit). See Wish.]
1. Longing; wishful; desirous.
Lifting up one of my sashes, I cast many a wistful, melancholy look
towards the sea. Swift.
2. Full of thought; eagerly attentive; meditative; musing; pensive;
contemplative.
That he who there at such an hour hath been, Will wistful linger on
that hallowed spot. Byron.
– Wist"ful*ly, adv.
– Wist"ful*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition