1. not bearing or associated with a brand name; unmarked by a commercial brand

Examples

• The store sells brandless cereal at a lower price than the name-brand version.
• Many consumers prefer brandless products to save money on groceries.
• The brandless packaging was plain white with only basic product information.
• She switched to brandless medications after learning they contain the same active ingredients.
• Brandless clothing from discount retailers has become increasingly popular.