1. to persuade someone not to buy or accept something

Examples

• The salesperson accidentally unsold the customer by mentioning all the product’s flaws.
• His negative review helped unsell many potential buyers.
• The company’s poor customer service tends to unsell their products.
• She tried to unsell him on the expensive warranty.
• The bad publicity unsold the movie before it even opened.
• Don’t unsell yourself by being too modest in the interview.