1. (adj)elfin, fey suggestive of an elf in strangeness and otherworldliness "thunderbolts quivered with elfin flares of heat lightning"; "the fey quality was there, the ability to see the moon at midday"- John Mason Brown
2. (adj)elfin, elflike small and delicate "she was an elfin creature--graceful and delicate"; "obsessed by things elfin and small"
3. (adj)elfin relating to or made or done by or as if by an elf "elfin bells"; "all the little creatures joined in the elfin dance"
4. (adj)elfin, elfish, elvish usually good-naturedly mischievous "perpetrated a practical joke with elfin delight"; "elvish tricks"