What is the meaning of the word "brutalise"?

Definitions:

  1. to become brutal or insensitive and unfeeling copy to clipboard verb
    • They brutalised their words, causing me to cry. copy to clipboard
  2. to make unfeeling or inhuman copy to clipboard verb
    • The time spent in solitary confinement brutalised the prisoner. copy to clipboard
  3. to treat brutally copy to clipboard verb
    • The inmates were brutalised by the guards. copy to clipboard

Synonyms: