To disagree is defined as to have a different opinion, to express disapproval or to be inconsistent with other statements.
(verb)See disagree in Webster's New World College Dictionary
intransitive verb disagreed, disagreeing
Origin: LME disagre < OFr desagreer: see dis- & agree
See disagree in American Heritage Dictionary 4
intransitive verb dis·a·greed, dis·a·gree·ing, dis·a·grees
Origin:
Origin: Middle English disagreen
Origin: , from Old French desagreer
Origin: : des-, dis-
Origin: + agreer, to agree; see agree
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