excessive; extreme; over the top
Describes something that goes beyond reasonable limits; often used for behavior, spending, or reactions.
彼の冗談は度を越している。
His jokes go too far.
度を越した支出は避けるべきだ。
You should avoid excessive spending.
Standard kanji spelling using 越す.
Variant spelling using 超す; both are used, but 越す is more common for exceeding limits.
From 度 (degree, limit) + を + 越す (to exceed). Literally 'to exceed the limit'.