Whimsical, a.
Etymology: [From Whimsey.]
1. Full of, or characterized by, whims; actuated by a whim; having peculiar notions; queer; strange; freakish. "A whimsical insult." Macaulay. My neighbors call me whimsical. Addison.
2. Odd or fantastic in appearance; quaintly devised; fantastic. "A whimsical chair." Evelyn.
Syn. -- Quaint; capricious; fanciful; fantastic.
Shades of meaning
Fernald has no entry of its own for whimsical; he lists it under queer.
He lists it without comment; the entries above explain its neighbors.