a. Showing no emotion or personality: an aloof, impersonal manner.

b. Having no personal reference or connection: an impersonal remark.

c. Not responsive to or expressive of human personalities: a large, impersonal corporation.

a. Of, relating to, or being a verb that expresses the action of an unspecified subject, as in methinks, "it seems to me"; Latin pluit, "it rains"; or, with an expletive subject, it snowed.

b. Indefinite. Used of pronouns.