"maddening" in the verb sense
1. madden, craze
cause to go crazy cause to lose one's mind
drive up the wall go on someone's nerves
"His behavior is maddening"
"maddening" in the adjective sense
1. exasperating, infuriating, maddening, vexing
extremely annoying or displeasing
"his cavelier curtness of manner was exasperating"
"I've had an exasperating day"
"her infuriating indifference"
"the ceaseless tumult of the jukebox was maddening"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License