extraneously
Definitions
In a manner that is irrelevant or unrelated to the subject at hand.
From an external source or origin; coming from the outside.
Examples
The report included several paragraphs that were added extraneously, distracting from the main argument.
He spoke extraneously about his personal hobbies during the formal business presentation.
Synonyms
irrelevant unnecessarily superfluously extrinsically incidentally tangentially needlessly
Antonyms
essentially intrinsically relevantly necessarily centrally fundamentally importantly