n. [ From Mrs. Malaprop, a character in Sheridan's drama, “ The Rivals, ” who makes amusing blunders in her use of words. See Malapropos. ] A grotesque misuse of a word; a word so used. [ 1913 Webster ]
a. & adv. [ F. mal à propos; mal evil + à propos to the purpose. ] Unseasonable or unseasonably; unsuitable or unsuitably. [ 1913 Webster ]