off-brand adjective 1off brand noun 1forms 3 adjective1 •Not serving the public image of an organisation or a person; inconsistent with one's reputation.Me treating [Naomi] Wolf like a branding problem would be about as off-brand as I could get. — 2023 off brand noun1 •A brand other than a famous one, for a product or service for which a famous brand exists. formsoff brands · more off-brand · most off-brand