1. the quality or state of being extraneous; the condition of being unrelated, irrelevant, or not belonging to something.
Usage: formal; abstract noun

Examples

• The extraneousness of that comment made it clear the speaker had not read the assignment.
• The judge ruled that the witness's personal opinions had no bearing on the case due to their extraneousness.
• We need to remove the extraneousness from this essay by cutting out all off-topic paragraphs.
• The extraneousness of the historical anecdote distracted from the main argument.
• Her argument suffered from extraneousness; she kept introducing unrelated examples.
• The committee debated the extraneousness of certain budget items before approving the proposal.