extraneous
adj.adj. not necessary or not related to what you are talking about. You use this to describe things that are extra and might be a distraction.
adj. not essential or relevant to the matter at hand; superfluous. Often used to describe information, details, or elements that do not contribute to the core purpose.
Please remove any extraneous details from your report.
The professor asked the students to focus on the main argument and ignore any extraneous information in the text.
While the technical specifications are impressive, the marketing team must ensure that the final presentation does not include any extraneous data that might confuse the average consumer.
From Latin extrāneus (“from without, strange”). Doublet of strange. Cognate with estrange (verb), Spanish extraño.