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