spasmodic

Something that is spasmodic is experiencing a fit, a loss of muscular control. If you are spazzing out, you are spasmodic.

A sudden fit or involuntary contraction of the muscles is called a spasm; thus spasmodic means to behave in such a way. Spasmodic is also commonly used to refer to a violent emotional outburst — for example, your parents might be spasmodic when they discover you're really majoring in partying, not medicine, at college.

Definitions of spasmodic
  1. adjective
    occurring in spells and often abruptly
    spasmodic rifle fire”
    synonyms: fitful
    sporadic
    recurring in scattered and irregular or unpredictable instances
  2. adjective
    affected by involuntary jerky muscular contractions; resembling a spasm
    “his body made a spasmodic jerk”
    synonyms: convulsive, spastic
    unsteady
    subject to change or variation
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