v. t. | 1. | To make worse; to deteriorate; to impair. |
2. | To get the better of; to worst. | |
v. i. | 1. | To grow or become worse. |
Verb | 1. | worsen - grow worse; "Conditions in the slum worsened" Synonyms: decline Antonyms: |
2. | worsen - make worse; "This drug aggravates the pain" Antonyms: ameliorate, improve, meliorate, amend, better - to make better; "The editor improved the manuscript with his changes" |