from The American Heritage® Dictionary of the English Language, 4th Edition

  • Backward; back: retrorocket.
  • Situated behind: retrolental.
  • Contrary to a usual or natural course or direction: retrograde.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • back or backward
  • behind
  • in the opposite direction
  • in an old-fashioned or old-school way

from the GNU version of the Collaborative International Dictionary of English

  • A prefix or combining form signifying backward, back.

from The Century Dictionary and Cyclopedia

  • n. A prefix of Latin origin, meaning ‘back’ or ‘backward,’ ‘behind’: equivalent to post-, and the opposite of ante- (also of pre- or pro-) with reference to place or position, rarely to time; sometimes also equivalent to re- and opposed to pre- or pro-. It corresponds to opistho- in words from the Greek.
  • Backward.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. affecting things past
  • n. a fashion reminiscent of the past


Latin retrō-, from retrō, backward, behind; see re- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • Turtles Forever, wherein the aughties heroes encounter their retro-'80s selves.

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