Da·da or da·da (dä?dä)n. A European artistic and literary movement (1916-1923) that flouted conventional aesthetic and cultural values by producing works marked by nonsense, travesty, and incongruity.[French dada, hobbyhorse, Dada, of baby-talk origin.]Da?da·ism n.Da?da·ist adj. & n.Da?da·is?tic adj.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Dada (?d??d??) or Dadaismn (Art Movements) a nihilistic artistic movement of the early 20th century in W Europe and the US, founded on principles of irrationality, incongruity, and irreverence towards accepted aesthetic criteria[C20: from French, from a children’s word for hobbyhorse, the name being arbitrarily chosen] ?Dadaist n, adj ?Dada?istic adj ?Dada?istically advCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Da?da (?d? d?) n. a movement in early 20th-century art and literature whose exponents challenged established canons of art, thought, and morality through nihilist works and outrageous behavior. [1915?20;