maddening

adjective

1. driving to madness or frenzy: a maddening thirst.
2. infuriating or exasperating: his maddening indifference to my pleas.
3. raging; furious: a maddening wind.

verb (used with object)

1. to anger or infuriate: The delays maddened her.
2. to make insane.

verb (used without object)

3. to become mad; act as if mad; rage.

adjective

1. serving to send mad
2. extremely annoying; exasperating

verb

1. to make or become mad or angry

adj.1743, from present participle of madden. Related: Maddeningly. v.“to drive to distraction,” 1822; earlier “to be mad” (1735), from mad (adj.) + -en (1). Related: Maddened; maddening. The earlier verb was simply mad (early 14c., intransitive; late 14c., transitive), from the adjective.