Dictionary and Thesaurus

Definition of Tense Up

• (verb) cause to be tense and uneasy or nervous or anxious; "he got a phone call from his lawyer that tensed him up"
• (verb) become tense, nervous, or uneasy; "He tensed up when he saw his opponent enter the room"

Synonyms of Tense Up

• Tense
• Tense
• Strain

Antonyms of Tense Up

• Relax
• Relax
• Unstrain

Homophones of Tense Up