Dis·in·ter·est·ed, a. Not influenced by regard to personal interest or advantage; free from selfish motive; having no relation of interest or feeling; not biased or prejudiced; as, a disinterested decision or judge.
The happiness of disinterested sacrifices. --Channing.
Syn: -- Unbiased; impartial; uninterested; indifferent.
adj : unaffected by self-interest