What does brash mean?
Brash is an adjective describing someone who is boldly self-assertive to the point of rudeness — the person who speaks too loudly, claims too much credit, and shows no hesitation about imposing themselves on others. It carries a distinctly disapproving tone: a brash executive is not merely confident but conspicuously and offensively so. The word can also describe things rather than people, such as brash colours or brash architecture that are garishly showy, and by extension actions undertaken with energetic haste and little care for consequences. Its closest relatives in meaning are brazen, cocky, and cheeky, though brash uniquely combines boldness with a suggestion of noise and lack of polish. A rarer noun sense denotes a mass of fragments, especially floating pieces of broken ice. For writers, brash is invaluable precisely because it judges: it lets you convey both the energy of bold behaviour and your disapproval of its manners in a single word.
Boldly self-assertive in an aggressive, rude, or noisy way.
"The brash young salesman promised results no one could deliver."
Garishly conspicuous or strikingly showy, as of colours or design.
"The hotel lobby was redecorated in brash oranges and golds."
This extended sense applies to visual style rather than personality.
A mass of fragments, especially of broken ice floating in the sea.
"The ship picked its way carefully through the brash ice."
Chiefly used in nautical and polar contexts, often as "brash ice".
Rare; the plural appears mainly in technical descriptions of ice conditions or debris fields.
"Sailors reported scattered brashes of ice along the shipping lane."
"Brash" may echo the sound of something breaking — fitting for a word describing people who barge through social conventions like they're made of glass.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of brash
Brash is first attested in English around the early sixteenth century. Its ultimate origin is uncertain; it may be related to or imitative of words suggesting a sudden breaking or splintering, which would fit its older senses of brittle or fragmentary material. The sense of hasty, impudent boldness developed from the idea of acting precipitately. Because its etymology is obscure, no secure cognates in other languages can be cited.
Related word forms
How brash is actually used
Almost always derogatory or mildly disapproving when applied to people, though it can carry a hint of grudging admiration in phrases like "brash and brilliant." Applied to colours, designs, or marketing it suggests vulgarity or excess. The noun sense referring to broken ice or wood fragments is now chiefly technical or regional.
Easily confused with brash
"Rash" means acting or done without careful thought, while "brash" adds the sense of loud, self-assertive boldness — one can be brash without being rash, and rash without being brash.