elfin
US /ˈel.fɪn/
UK /ˈel.fɪn/

1.
elfique, espiègle
relating to or resembling an elf, especially in being small and delicate with pointed ears and a mischievous nature
:
•
Her small, delicate features gave her an elfin appearance.
Ses petits traits délicats lui donnaient une apparence elfique.
•
The child had an elfin grin that suggested mischief.
L'enfant avait un sourire espiègle qui suggérait la malice.