Dictionary / Vocabulary / 背く
そむく
to run counter to; to go against; to disobey; to infringe
JLPT N1 common word Also written 叛く
彼は約束に背いた。
He betrayed his promises.
彼は親の意に背いて歌手になった。
He became a singer against his parents wishes.
彼の行為は法律に背いている。
His action is against the law.