Meaning & use

gadfly

noun·Advanced

Last updated

UK/ˈɡædflaɪ/
US/ˈɡædflaɪ/

Meanings

  1. nouncountablefigurative

    Someone who keeps challenging people in power or popular opinion, often in an irritating way, to provoke change.

    Grammar: Often applied to critics and reporters: a political gadfly.

    Patterns

    • a gadfly of something
    • play the gadfly

    The newspaper columnist was a gadfly who questioned every city budget.

    As a local gadfly, he attended every council meeting to complain.

    Great organizations need a gadfly who asks uncomfortable questions.

  2. nouncountablebiology

    A large fly that bites farm animals such as cattle and horses.

    Grammar: The literal insect sense, now less common than the figurative one.

    Patterns

    • a gadfly bites

    A gadfly landed on the horse's back and made it twitch.

    Cattle swish their tails to drive off gadflies.

Word forms

pluralgadflies

Common combinations

political gadfly
The political gadfly sued the city twice.
local gadfly
The local gadfly challenged every permit.
act as a gadfly
Reporters should act as a gadfly to those in power.
persistent gadfly
A persistent gadfly kept writing to the mayor.
Socrates the gadfly
Socrates called himself a gadfly to the Athenians.

Synonyms and how they differ

critic
A critic can be calm and occasional, but a gadfly is persistent and annoying by design.
agitator
Agitator suggests stirring up crowds or unrest, while gadfly stresses personal, nagging provocation.
nuisance
Nuisance only says a person is annoying and does not imply that they provoke improvement.
troublemaker
Troublemaker is purely negative, whereas a gadfly may be useful for exposing problems.

Opposites

Word family

gad verb
to move around restlessly, as in gadding about
gadabout noun
a person who goes from place to place for fun
fly noun
a small flying insect

Commonly confused: gadfly or horsefly?

gadfly vs horsefly

A horsefly is a real biting insect; gadfly is used for both the insect and the figurative critic.

Practice

In the sentence He served as the gadfly of the town council, what does gadfly mean?

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