Two Words

Pacifism:
A noun.
1902.

1...Opposition to war or violence as a means of settling disputes; specifically: refusal to bear arms on moral or religious grounds.

2...An attitude or policy of nonresistance.


Nonviolence:
A noun.
1920.

1...Abstention from violence as a matter of principle; also: the principle of such abstention.

2..The quality or state of being nonviolent: avoidance of violence.


---Merriam-Webster---