What does the word vicious mean?

Usage examples for vicious

  1. Whence can I have inherited these vicious tendencies? – Set in Silver by Charles Norris Williamson and Alice Muriel Williamson
  2. The foreman failed to remember this in his vicious mood. – Prescott of Saskatchewan by Harold Bindloss
  3. Perhaps it was the saint who had the more pleasure, who was the more vicious. – Cæsar or Nothing by Pío Baroja Baroja