jumpy

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jump·y / ˈjəmpē/ • adj. (jump·i·er , jump·i·est ) inf. (of a person) anxious and uneasy: he was tired and jumpy. ∎  characterized by abrupt stops and starts or an irregular course: a jumpy pulse.DERIVATIVES: jump·i·ly / -pəlē/ adv.jump·i·ness n.

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