beside the point

listen to the pronunciation of beside the point
English - English
Irrelevantly, off the topic

Judges in the British law courts used to tell lawyers who spoke beside the point or quoted irrelevant cases that they might as well say that Robin Hood in Barnsdale stood.

Irrelevant, moot

His many charitable donations are beside the point. They do not make up for the fact that he stole the money to begin with.

not belonging to the main issue, marginal to the issue at hand
peripheral
beside the point
Favorites