Definition, Meaning & Synonyms

stiffen-up

phrasal verb
/ˈstɪf.ən ʌp/
Definition
To become rigid or tense; to make something become more firm or less flexible.
Examples
  • He began to stiffen up when he heard the unexpected news.
  • The material will stiffen up once it dries.
  • As the cold air rushed in, I could feel my body stiffen up.
Meaning
The process of increasing the rigidity or firmness of an object or one’s body, often in response to a specific stimulus or situation.
Synonyms
  • tighten
  • rigidify
  • harden
  • tense