1. charming in a childlike or naive way
The Collaborative International Dictionary of English v.0.48:
Winsome \Win"some\, a. [Compar. Winsomer; superl.
Winsomest.] [AS. wynsum, fr. wynn joy; akin to OS. wunnia,
OHG. wunna, wunni, G. wonne, Goth. wunan to rejoice (in
unwunands sad), AS. wunian to dwell. ????. See Win, v. t.,
1. Cheerful; merry; gay; light-hearted.
Misled by ill example, and a winsome nature.
2. Causing joy or pleasure; gladsome; pleasant.
Still plotting how their hungry ear
That winsome voice again might hear. --Emerson.
WordNet (r) 3.0 (2006):
adj 1: charming in a childlike or naive way
Moby Thesaurus II by Grady Ward, 1.0:
109 Moby Thesaurus words for "winsome":
admirable, adorable, alluring, angelic, appealing, appetizing,
attractive, beaming, beguiling, bewitching, blandishing, blithe,
blithesome, bright, bright and sunny, cajoling, captivating,
caressable, catching, charismatic, charming, cheerful, cheery,
coaxing, come-hither, coquettish, cuddlesome, delightful, dulcet,
elated, enchanting, engaging, enravishing, enthralling, enticing,
entrancing, eupeptic, euphoric, exalted, exciting, exhilarated,
exotic, exquisite, fascinating, fetching, flirtatious, flushed,
genial, glad, gladsome, glamorous, glowing, happy, heart-robbing,
high, hopeful, hypnotic, in good spirits, in high spirits,
interesting, intriguing, inviting, irrepressible, irresistible,
kissable, laughing, likable, lovable, lovely, lovesome, luxurious,
mesmeric, mouth-watering, of good cheer, optimistic, piquant,
pleasant, prepossessing, provocative, provoquant, radiant,
ravishing, riant, rosy, sanguine, sanguineous, seducing, seductive,
sensuous, seraphic, siren, sirenic, smiling, sparkling,
spellbinding, spellful, sunny, sweet, taking, tantalizing, teasing,
tempting, thrilling, tickling, titillating, titillative,
voluptuous, winning, witching