maddening

(verb) cause to go crazy; cause to lose one's mind. Synonyms: madden, craze.

(verb) drive up the wall; go on someone's nerves. Synonyms: madden.

(verb) make mad. Synonyms: madden. Example: "His behavior is maddening."

(adj) extremely annoying or displeasing. Synonyms: exasperating, infuriating, vexing. Examples: "His cavelier curtness of manner was exasperating." "I've had an exasperating day." "Her infuriating indifference." "The ceaseless tumult of the jukebox was maddening."