1. (p. pr. & vb. n.) of Gallop.

2. (a.) Going at a gallop; progressing rapidly; as, a galloping horse.

agile breakneck dashing double-quick eagle-winged expeditious express fast fleet flying hair-trigger hasty headlong hustling light of heel light-footed lively mercurial nimble nimble-footed precipitate prompt quick quick as lightning quick as thought rapid reckless running snappy spanking speedy swift winged