Quick answer
Tomfoolery means foolish or silly behavior. It often describes playful nonsense, pranks, or unserious antics.
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Tomfoolery means foolish behavior, silly nonsense, or playful mischief. It is a warm, old-fashioned word for antics that are ridiculous but often more annoying or amusing than truly harmful.
Tomfoolery means foolish or silly behavior. It often describes playful nonsense, pranks, or unserious antics.
In plain English, tomfoolery is foolish behavior. It can mean jokes, pranks, silliness, pointless messing around, or behavior that is not serious enough for the moment.
The word often sounds gentler than “stupidity.” It can scold someone while still leaving room for humor.
Tomfoolery is usually informal and mildly negative, but it can be affectionate. A teacher might stop classroom tomfoolery; a storyteller might celebrate childhood tomfoolery.
Use it for light foolishness. Choose “misconduct,” “recklessness,” or “dangerous behavior” if the action causes real harm.
Tomfoolery comes from Tom fool, an old expression for a foolish person. The noun names the foolish behavior rather than the person.
Tomfoolery developed from older uses of Tom fool, a generic name for a fool. Over time, the word came to mean foolish antics or silly behavior.
Use tomfoolery when you want a scolding word with comic warmth. If the behavior is dangerous or cruel, choose a stronger term so the sentence does not minimize it.
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Edited by Absurd Words. Last updated: May 14, 2026. See the editorial policy for how definitions, examples, labels, and update checks are handled on the site.