definition of
nervous

[1] #1 nervous s. easily agitated; "a nervous addict"; "a nervous thoroughbred". wn

[2] #2 nervous s. [anxious, queasy, uneasy, unquiet] causing or fraught with or showing anxiety; "spent an anxious night waiting for the test results"; "cast anxious glances behind her"; "those nervous moments before takeoff"; "an unquiet mind". wn

[3] #3 nervous a. [neural] of or relating to the nervous system; "nervous disease"; "neural disorder". wn

[4] #4 nervous s. [aflutter] excited in anticipation. wn

[5] #5 nervous s. [skittish, flighty, spooky] unpredictably excitable (especially of horses). wn