[brash] adj [origin unknown] (1566) 1: brittle "~ wood"
2. a: heedless of the consequences: audacious "the ~est bush pilot of them all" b: done in haste without regard for consequences: rash "~ acts" 3 a: full of fresh raw vitality "a ~ frontier town" b: uninhibitedly energetic or demonstrative: bumptious "a ~ comedian"
4. a: lacking restraint and discernment: tactless "~ remarks" b: aggressively self-assertive: impudent "~ to the point of arrogance"
5: piercingly sharp: harsh "a ~ squeal of brakes"
6: marked by vivid contrast: bold "~ colors" -- brash.ly adv -- brash.ness n
[2]brash n [obs. E brash to breach a wall] (1787): a mass of fragments (as of ice)