ichidan verb, transitive verb
Used for deliberately changing or altering something, often with a nuance of deviation from an original state or standard.
彼は約束の時間を違えた。
He changed the promised time.
予定を違えて、早め
We altered our plans and left early.
ichidan verb, transitive verb
go against; run counter to; break (one's word)
Used when an action contradicts an expectation, promise, or moral standard. Common with 約束, 期待, 道理, etc.
彼は約束を違えた。
He broke his promise.
その行動は道理に違える。
That action goes against reason.
ichidan verb, transitive verb
Used for making an error in judgment, action, or calculation. Often interchangeable with 間違える in casual speech, but 違える can sound slightly more formal or literary.
計算を違えてしまった。
I made a mistake in the calculation.
道を違えたかもしれない。
I might have taken the wrong road.