irrelevant

/ɪˈrɛləvənt/
adjective
  1. Not connected with or important to the current situation or topic.
    • When planning the party, the color of the napkins seemed irrelevant compared to finding a venue.
    • The judge ruled that the witness's testimony was irrelevant and could not be used in court.
    • His comment about the weather was completely irrelevant to our discussion about the budget.