Letters that make jumpy
j, p, m, u, y are letters that make 'jumpy'
2 possible definitions for 'jumpy'
Under this definition, jumpy is an adjective and has the following properties:
uptight, nervy, jittery, restive, overstrung, edgy, high-strung, highly strung have the same meaning as 'jumpy'
uneasiness, skittishness, restiveness, jitteriness, jumpiness, edge, sharpness, nervousness, edginess, inquietude, disquietude are derivatives of 'jumpy'.
tense is similar to jumpy.
Under this definition, jumpy is an adjective and has the following properties:
smooth has the opposite meaning of jumpy
jerking, jump, bump, blow, jerk, start, jolt, saccade, rock, careen, sway, tilt, startle are derivatives of 'jumpy'.