tense up

Definitions of tense up
1

v become tense, nervous, or uneasy

Synonyms:
tense
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

v cause to be tense and uneasy or nervous or anxious

Synonyms:
strain, tense
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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