Definition of mala fide in US English:

mala fide

adjective & adverb

  • In bad faith; with intent to deceive.

    as adjective ‘a mala fide abuse of position’
    • ‘The petition lacked in material particulars to indicate such mala fide conduct on the part of the respondent.’
    • ‘We need to sift the grain from the chaff and check out whether the allegations of abuse are genuine, exaggerated or altogether mala fide.’
    • ‘I have piled up the few chapters I can remember all around me and I am taking them apart a letter at a time, stripping them of intentions both mala fide and bona fide.’
    • ‘These accusations are as ridiculous as they are mala fide.’
    • ‘Often, they are bona fide, but they can be mala fide too, more often than what you would want to admit.’


Latin, ablative of mala fides.


mala fide

/ˌmalə ˈfīdē/