winsome

US /ˈwɪn.səm/
UK /ˈwɪn.səm/
"winsome" picture
1.

attractive or appealing in a fresh, innocent way

:
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Her winsome smile charmed everyone she met.
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The child's winsome innocence made her a favorite among the adults.
:
charmingappealingengagingattractivecaptivating