1. in a manner that is not essential, relevant, or belonging to the matter at hand; irrelevantly
Usage: formal; often used in academic or technical writing

Examples

• The judge ruled that the witness's comments about the defendant's personal life were extraneously introduced and should be disregarded.
• The report included extraneously detailed information that distracted from the main findings.
• She argued that the historical context was extraneously added to the scientific paper.
• The committee decided to remove extraneously cited sources that did not support the thesis.
• His remarks, though interesting, were extraneously connected to the central topic of the debate.