Extraneous

1.

~ (to something) (of external origin, not naturally belonging to, not essential, not pertinent, coming from outside) ដែលមិនត្រូវកន្លែង, ដែលគ្មានទាក់ទង
Example: Extraneous material in a book.

1.

Not belonging to, or dependent upon, a thing; without or beyond a thing; not essential or intrinsic; foreign; as, to separate gold from extraneous matter.

1.

alien, contrasted, extraneous, foreign, irrelevant, remote, strange, unconnected

1.

akin, germane, kindred, relevant