Whimsical

Definition: (1) acting with playful humor; (2) demonstrating eccentric creativity; (3) spontaneous, fanciful, and imaginative inventiveness

Compatible Qualities: changeable, rascally

Quotes:
If you’re alive, kick into drive. Chase whimsies. See if you can turn dreams into a way to make a living, if not an entire way of life. — Kevin Patrick Smith (1970-) American filmmaker
• We find in the history of ideas mutations which do not seem to correspond to any obvious need, and at first sight appear as mere playful whimsies such as Apollonius’ work on conic sections, or the non-Euclidean geometries, whose practical value became apparent only later. — Arthur Koestler (1905–1983) Hungarian-born author & journalist