tense up

Definitions of tense up
  1. verb
    become tense, nervous, or uneasy
    synonyms: tense
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    Antonyms:
    decompress, loosen up, relax, slow down, unbend, unwind
    become less tense, rest, or take one's ease
    type of:
    change state, turn
    undergo a transformation or a change of position or action
  2. verb
    cause to be tense and uneasy or nervous or anxious
    synonyms: strain, tense
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    Antonyms:
    loosen up, make relaxed, relax, unlax, unstrain, unwind
    cause to feel relaxed
    types:
    extend, stretch
    extend one's limbs or muscles, or the entire body
    spread-eagle
    stretch out completely
    crane, stretch out
    stretch (the neck) so as to see better
    type of:
    affect
    act physically on; have an effect upon
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