Synonyms for Restive (same or very similar meaning)
WordNet sense 1 (being in a tense state):
edgy, high-strung, jittery, jumpy, nervy, overstrung, uptight, highly strungWordNet sense 2 (in or of a state of physical or nervous tension):
tenseWordNet sense 3 (restless or short of temper under delay or opposition):
impatientFrom the ODE community, based on WordNetadd/edit