bona fide

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See also: bonâ fide


Alternative forms[edit]


  • (UK) IPA(key): /ˌbəʊ.nəˈfaɪ.di/
  • (US) IPA(key): /ˌboʊnəˈfaɪdi/, /ˈboʊnə.faɪd/, /ˈboʊnəˌfiːdeɪ/
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Usage notes[edit]

The pronunciation IPA(key): /ˈboʊnə.faɪd/, is the most common one in the USA and therefore listed first in American dictionaries, incl. American Heritage, Merriam-Webster, and the American version of Collins.[1]


From the Latin bonā fidē (“in good faith”) which is the ablative case of bona fidēs (“good faith”).


bona fide ‎(not comparable)

  1. In good faith.
    Although he failed, the prime minister made a bona fide attempt to repair the nation's damaged economy.
  2. Genuine; not counterfeit.
    This is a bona fide Roman coin.
    • 2000, O Brother Where Art Thou? (movie):
      Ulysses Everett McGill: I am the only daddy you got! I’m the damn pater familias!
      Wharvey Gal: But you ain’t bona fide!

Usage notes[edit]

Sometimes misspelled as *bonafied, by incorrectly analyzing as the past tense of assumed *bonafy.[2]




See also[edit]


  1. ^ Webster's Third New International Dictionary, Unabridged
  2. ^ Bonafied / Bona Fide, Paul Brians