Worsen - Definition
worsen
v 1: grow worse; "Conditions in the slum worsened" [syn:
worsen, decline] [ant: ameliorate, better,
improve, meliorate]
2: make worse; "This drug aggravates the pain" [syn: worsen,
aggravate, exacerbate, exasperate] [ant: ameliorate,
amend, better, improve, meliorate]