brant /bɹænt/adjective 2noun 1forms 3 adjective2 •(dialect) steep, precipitous.Grapes grow on the brant rocks so wonderfully that ye will marvel how any man dare climb up to them. — 1551 •(Scotland) smooth; unwrinkledYour bonnie brow was brent. — 1828 noun1 •(US, Canada) Any of several wild geese, of the genus Branta, that breed in the Arctic, but especially the brent goose, Branta bernicla. formsbrants · more brant · most brant