The definition of winsome is someone or something that is attractive either physically or in actions and character, or charming in a childlike way.(adjective)
A shy, childlike smile is an example of a winsome smile.
See winsome in Webster's New World College Dictionary
Origin: ME winsum < OE wynsum, pleasant, delightful < wynn, delight, joy (for IE base see win) + -sum, -some
See winsome in American Heritage Dictionary 4
Origin: Middle English winsum
Origin: , from Old English wynsum
Origin: : from wynn, joy; see wen-1 in Indo-European roots
Origin: + -sum, characterized by; see -some1.
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