Definition of "malapropos" [mal•ap•ro•pos]

• Out of place; inappropriate. (adjective)
• In an inappropriate or inopportune manner. (adverb)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Next day, thanks to his histrionic powers and his ingratiating address, he was promoted to the rank of "supernumerary captain's servant" -- a "post which," I give his words, "I flatter myself, was created for me alone, and furnished me with opportunities unequalled for a task in which one word malapropos would have been my destruction.""
• "Washington particularly regretted what he called the “extreme malapropos” effect on Virginia, where the bad news from New Hampshire arrived in March just as delegates to the state ratifying convention were being chosen."
• "First of all, totally malapropos usage of the Public Enemy lyric quote."