impertinent; impudent; tactless

a brash young man.

hasty; rash; impetuous.

energetic or highly spirited, esp. in an irreverent way; zesty

a brash new musical.

(used esp. of wood) brittle.

a pile or stack of loose fragments or debris, as of rocks or hedge clippings.

brash ice.

Pathology . heartburn ( def. 1 ) .

Scot. and North England Dialect .

a sudden shower or burst of rain.

any sudden, minor sickness or indisposition, esp. of the digestive tract.

an assault; attack.

adjective

afraid , careful , cautious , discreet , fearful , reserved

adjective

audacious , bold , brazenfaced , cheeky * , cocksure , cocky * , effervescent , flip , foolhardy , forward , hasty , headlong , heedless , hotheaded , ill-advised , impertinent , impetuous , impolitic , impudent , incautious , inconsiderate , indiscreet , insolent , madcap , maladroit , nervy , precipitate , presuming , presumptuous , pushing , rash , reckless , rude , self-asserting , self-assertive , tactless , thoughtless , undiplomatic , untactful , uppity , vivacious , harum-scarum , ill-considered , improvident , impulsive , precipitant , slapdash , temerarious , unconsidered , clumsy , gauche , indelicate , unpolitic , assuming , assumptive , boldfaced , brazen , cheeky , contumelious , familiar , malapert , overconfident , pert , pushy , sassy , saucy , smart , attack , brittle , cocky , crisp , fragile , irascible , quick-tempered , storm