quirky

Abounding in quirks or twists; irregular; zigzag; quirkish.

Full of quirks or subterfuges; shifty; quibbling; characterized by petty tricks: as, a quirky attorney; a quirky question.

Merry; sportive.

Full of quirks; tricky.

Given to quirks or idiosyncrasies; strange in a somewhat silly, awkward manner, potentially cute.

informal terms; strikingly unconventional