— maddeningly , adv. — maddeningness , n.
/mad"n ing/ , adj.
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.
[ 1735-45; MADDEN + -ING 2 ]