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Meaning of jumpy

jump•y

Pronunciation: ( jum'pē), [key]
— jump•i•er, jump•i•est.
  1. subject to sudden, involuntary starts, esp. from nervousness, fear, excitement, etc.
  2. characterized by sudden starts, jerks, or jumps: a jumpy narrative.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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