To decompress is either to reduce physical pressure on something or to unwind and relax after a long, hard day. You might need to decompress after a four-hour study session with your math tutor.

When you compress something, you squeeze or flatten it, the way you'd compress an air mattress before rolling it up. If you decrease or let up that pressure, you decompress the air mattress. It's much more common to use this verb to mean "relax," to loosen a completely different kind of pressure. You may decompress after school by watching TV or taking your dog for a walk.

Definitions of decompress
  1. verb
    restore to its uncompressed form
    decompress data”
    synonyms: uncompress
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    compact, compress, pack together
    make more compact by or as if by pressing
    type of:
    reconstruct, restore
    return to its original or usable and functioning condition
  2. verb
    decrease the pressure of
    synonyms: depressurise, depressurize
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    pressurise, pressurize
    increase the pressure in or of
    cause to lose air pressure or collapse by piercing
    type of:
    adjust, correct, set
    alter or regulate so as to achieve accuracy or conform to a standard
  3. verb
    become less tense, rest, or take one's ease
    synonyms: loosen up, relax, slow down, unbend, unwind
    see moresee less
    tense, tense up
    become tense, nervous, or uneasy
    vege out, vegetate
    engage in passive relaxation
    sit back, take it easy
    settle into a comfortable sitting position
    type of:
    change state, turn
    undergo a transformation or a change of position or action
Word Family

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