uninvolved

/ˌʌnɪnˈvɑːlvd/
adjective
  1. Not taking part in something; not participating or engaged.
    • He stood uninvolved on the sidelines while the others played the game.
    • The uninvolved parents rarely attended school meetings or events.
    • She remained uninvolved in the office gossip, preferring to focus on her work.
  2. Not connected or associated with a situation, especially a complicated or unpleasant one.
    • They wanted to stay uninvolved in the political dispute between their neighbors.
    • The witness was completely uninvolved in the accident, having just arrived on the scene.
    • As an uninvolved third party, the mediator could see both sides clearly.