Disagree, v. i. [imp. & p. p. Disagreed; p. pr. & vb. n. Disageeing.]
Etymology: [Pref. dis- + agree: cf. F. désagréer to displease.]
1. To fail to accord; not to agree; to lack harmony; to differ; to be unlike; to be at variance. They reject the plainest sense of Scripture, because it seems disagree with what they call reason. Atterbury.
2. To differ in opinion; to hold discordant views; to be at controversy; to quarrel. Who shall decide, when doctors disagree Pope.
3. To be unsuited; to have unfitness; as, medicine sometimes disagrees with the patient; food often disagrees with the stomach or the taste.
Note: Usually followed by with, sometimes by to, rarely by from; as, I disagree to your proposal.
1 more senses
Syn. -- To differ; vary; dissent.
Shades of meaning
Fernald lists disagree only as an antonym, under agree.
He lists it without comment; the entries above explain its neighbors.