D defs.my
Entry 2 senses · 2 variants Webster, 1913

Disimprove

· Dis·im·prove · IPA
01 v. t. To make worse; -- the opposite of improve.
  1. 1.
    To make worse; -- the opposite of improve.[R.]
02 v. i. To grow worse; to deteriorate.
  1. 1.
    To grow worse; to deteriorate.