definition of
brisk

[1] #1 brisk s. [alert, lively, merry, rattling, snappy, spanking, zippy] quick and energetic; "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze". wn

[2] #2 brisk s. [bracing, fresh, refreshing, refreshful, tonic] imparting vitality and energy; "the bracing mountain air". wn

[3] #3 brisk v. [brisk up, brisken] become brisk; "business brisked up". wn

[4] #4 brisk s. very active; "doing a brisk business". wn