a. [ Cf. Disinteressed. ] Not influenced by regard to personal interest or advantage; free from selfish motive; having no relation of interest or feeling; not biased or prejudiced;
The happiness of disinterested sacrifices. Channing.
adv. In a disinterested manner; without bias or prejudice. [ 1913 Webster ]
n. The state or quality of being disinterested; impartiality. [ 1913 Webster ]
That perfect disinterestedness and self-devotion of which man seems to be incapable, but which is sometimes found in woman. Macaulay. [ 1913 Webster ]