definition of
nervy

[1] #1 nervy s. [edgy, high-strung, highly strung, jittery, jumpy, overstrung, restive, uptight] being in a tense state. wn

[2] #2 nervy s. showing or requiring courage and contempt of danger; "the nervy feats of mountaineers". wn

[3] #3 nervy s. [brash, cheeky] offensively bold; "a brash newcomer disputed the age-old rules for admission to the club"; "a nervy thing to say". wn