Altruism :: Altruism (n.) Regard for others, both natural and moral; devotion to the interests of others; brotherly kindness; -- opposed to egoism or selfishness..
Altruist :: Altruist (n.) One imbued with altruism; -- opposed to egoist.
Altruistic :: Altruistic (a.) Regardful of others; beneficent; unselfish; -- opposed to egoistic or selfish.
Truism :: Truism (n.) An undoubted or self-evident truth; a statement which is pliantly true; a proposition needing no proof or argument; -- opposed to falsism.
Truismatic :: Truismatic (a.) Of or pertaining to truisms; consisting of truisms.
Untruism :: Untruism (n.) Something not true; a false statement.