Meaning & use

bona fides

noun·Advancedformal

Last updated

UK/ˌbəʊnə ˈfaɪdiːz/
US/ˌboʊnə ˈfaɪdiz/

Meanings

  1. nounusually pluralformal

    Proof of who someone is or of their qualifications, showing they can be trusted to do what they claim.

    Grammar: Takes a plural verb in most writing: her bona fides are solid. A singular verb is also seen.

    Patterns

    • establish your bona fides
    • someone's bona fides as something

    Before the interview, the reporter checked the guest's bona fides.

    She has the bona fides to lead this project after ten years in the field.

    He needed to prove his bona fides as an environmentalist before the group would listen to him.

  2. noununcountablelegalformal

    Honest intention or sincere good faith in dealing with others.

    Grammar: A rare, more legal use; the phrase is then treated as singular: his bona fides was never doubted.

    Patterns

    • act in bona fides

    The court accepted the buyer's bona fides and let the sale stand.

    Nobody questioned the bona fides of the charity's founders.

    The company's bona fides in the negotiation were clear to both sides.

Common combinations

establish your bona fides
The new coach worked hard to establish her bona fides with the team.
check someone's bona fides
The bank will check your bona fides before approving the transfer.
impeccable bona fides
The candidate arrived with impeccable bona fides in education reform.
question someone's bona fides
Critics began to question the author's bona fides on the subject.
academic bona fides
His academic bona fides were enough to get him invited to the panel.

Synonyms and how they differ

credentials
Credentials are usually documents or records, while bona fides can also mean the overall impression of genuineness.
qualifications
Qualifications focus on skills and training, whereas bona fides also involve honesty and being who you say you are.
authenticity
Authenticity describes something being genuine, but bona fides describes the proof offered by a person or group.
track record
A track record is evidence from past performance, while bona fides can be claimed from status or sincerity as well.

Opposites

Word family

bona fide adjective
real, genuine, or sincere
bona fide adverb
in good faith (rare)
mala fides noun
bad faith or dishonest intent

Commonly confused: bona fides or bona fide?

bona fides vs bona fide

Bona fide is the adjective meaning genuine (a bona fide offer), while bona fides is the noun for proof of genuineness. Do not use bona fides before a noun.

Practice

Before the council agreed to fund the project, they asked the group to show their ___.

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