the GNU version of the Collaborative International Dictionary of English
adj. Like a colt; wanton; frisky.
The Century Dictionary and Cyclopedia
Like a colt.
Frisky; gay; wanton; licentious.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. given to merry frolicking
Word Usage
"I highly encourage you to read his take on both that and on the later Newbery/Caldecott proceedings though I do take serious issue with any discussion of Shannon Hale that contains the word "coltish"."