maddening
v. B2 Upper Intermediate US //ˈmædənɪŋ// UK //mˈædənɪŋ// mad·den·ing
v. extremely annoying or frustrating. You use this to describe something that makes you feel like you are losing your mind.
v. causing intense frustration or irritation; extremely annoying. Often used to describe repetitive or persistent annoyances.
The constant dripping from the tap is maddening.
Waiting in the long queue without any sign of progress was maddening for the passengers.
The maddening inconsistency of the software's interface forced the developers to rewrite the entire user manual from scratch.