impersonal

Concise Oxford English Dictionary © 2008 Oxford University Press:
impersonal/ɪmˈpɜːsənl/

▶adjective

• 1 not influenced by or involving personal feelings.

  ■ featureless and anonymous.

• 2 not existing as a person: an impersonal God.

• 3 Grammar (of a verb) used only with a formal subject (in English usually it) and expressing an action not attributable to a definite subject (as in it is snowing).

– derivatives
impersonality noun,
impersonally adverb.