Definition of unsell
1 : to dissuade from a belief in the truth, value, or desirability of something <ads that unsell the public on energy consumption>
2 : to discourage a belief in the truth, value, or desirability of <I unsold the coat he wanted and sold him another>
First Known Use of unsell
Seen and Heard
What made you want to look up unsell? Please tell us where you read or heard it (including the quote, if possible).