What are the antonyms for RELAX?

Synonyms for RELAX

Usage Examples for RELAX

  1. Let me make the songs for the weary, Amid life's fever and fret, Till hearts shall relax their tension, And careworn brows forget. - "Poems" by Frances E. W. Harper
  2. He had never felt less like joking, but he was rewarded by seeing a faint smile relax the strained expression on her face. - "The Vision of Desire" by Margaret Pedler