Maddening things are extremely irritating: they make you mad. Some drivers have the maddening habit of following other cars too closely on the highway. If something annoys you a lot, it's maddening.

What does it mean if someone is maddening?

1 : tending to craze. 2a : tending to infuriate. b : tending to vex : irritating.

What is a madding?

: acting in a frenzied manner —usually used in the phrase madding crowd to denote especially the crowded world of human activity and strife built his home far from the madding crowd.