v. less·ened, less·en·ing, less·ens v.tr. 1. To make less; reduce. See Synonyms at decrease. 2. Archaic To make little of; belittle. v.intr. To become less; decrease: interest that lessened as the lecture continued. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.