Definition of "disimprove" [dis•im•prove]

• To make something worse (verb)
• To deteriorate (verb)

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• "We don't do education well and the way we are doing it continues to disimprove."
• "At least you can actually download, disimprove and compile"
• "In the subgroup of patients amongst which this set of genes appears as regulated, it was shown that, although these patients initially responded to treatment, they were the ones who with greater frequency subsequently suffered relapse, disimprove and present the worst prognosis and survival rates."