alienans /ˈeɪli.ənænz/adjective 1noun 1 adjective1 •(rhetoric) Negating, denying, modifying, or casting doubt on the applicability of its modificand.The newspaper never called him "the murderer", always "the alleged murderer", but the alienans adjective didn't help very much: the word "murderer" is all people saw.Because a "decoy duck" is not a duck, "decoy" is an alienans adjective. noun1 •(rhetoric) An alienans adjective.