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First attested 1607; from Middle French concomitant, from Latin concomitāns, the present participle of concomitor (I accompany), from con- (together) + comitor (I accompany), from comes (companion).


  • (UK) IPA(key): /kənˈkɒmɪtənt/
  • (US) IPA(key): /kənˈkɑːmətənt/
  • (file)


concomitant (not comparable)

  1. Accompanying; conjoining; attending; concurrent. [from early 17th c.]
    Synonyms: accompanying, adjoining, attendant, incidental
    • 1689, John Locke, An Essay Concerning Human Understanding[1]:
      It has therefore pleased our wise Creator to annex to several objects, and to the ideas which we receive from them, as also to several of our thoughts, a concomitant pleasure, []
    • 1939 June, “What the Railways are Doing: London Transport Air Raid Precautions”, in Railway Magazine, page 462:
      The visitors saw the measures taken immediately before, during, and after an "air raid", which included a gas and high-explosive bomb attack. The concomitant noise "effects" sounded grimly realistic.
    • 1970, Alvin Toffler, Future Shock, Bantam Books, pg. 41:
      The new technology on which super-industrialism is based, much of it blue-printed in American research laboratories, brings with it an inevitable acceleration of change in society and a concomitant speed-up of the pace of individual life as well.
    • 2005, Alpha Chiang and Kevin Wainwright, Fundamental Methods of Mathematical Economics (4th ed.), McGraw-Hill International, p. 501
      With technological improvement, therefore, it will become possible, in a succession of steady states, to have a larger and larger amount of capital equipment available to each representative worker in the economy, with a concomitant rise in productivity.



concomitant (plural concomitants)

  1. Something happening or existing at the same time.
    Synonyms: accompaniment, co-occurrence
    • 1900, James Strachey (translator), Sigmund Freud, The Interpretation of Dreams, Avon Books, pg. 301:
      It is also instructive to consider the relation of these dreams to anxiety dreams. In the dreams we have been discussing, a repressed wish has found a means of evading censorship—and the distortion which censorship involves. The invariable concomitant is that painful feelings are experienced in the dream.
    • 1963 May, “Metamorphosis at Swindon Works”, in Modern Railways, page 337:
      A major concomitant of the advent of diesel traction has been a vast increase in the amount of electrical equipment needing overhaul.
    • 1970, Alvin Toffler, Future Shock, Bantam Books, pg.93
      The declining commitment to place is thus related not to mobility per se, but to a concomitant of mobility- the shorter duration of place relationships.
  2. (algebra) An invariant homogeneous polynomial in the coefficients of a form, a covariant variable, and a contravariant variable.


Related terms[edit]




Borrowed from Latin concomitāns, the present participle of Latin concomitor (I accompany)


  • IPA(key): /kɔ̃.kɔ.mi.tɑ̃/


concomitant (feminine singular concomitante, masculine plural concomitants, feminine plural concomitantes)

  1. concomitant

Further reading[edit]