WordWeb Online

1. Easily agitated
   "a nervous addict"; "a nervous thoroughbred"
    
2. Causing or fraught with or showing anxiety
   "those nervous moments before takeoff"
   - anxious, queasy, uneasy, unquiet
    
3. Of or relating to the nervous system
   "nervous disease"
   - neural
    
4. Excited in anticipation
   - aflutter
    
5. Unpredictably excitable (especially of horses)
   - skittish, flighty, spooky, skittery

Sounds like: nervus

See also: excitable, excited, nerve, nervous system, nervously, nervousness, tense, troubled

Encyclopedia: Nervous Nervous, London