- past participle of forbid.
forbidden
Americanverb
adjective
-
not allowed; prohibited.
a forbidden food in his religion.
-
Physics. involving a change in quantum numbers that is not permitted by the selection rules.
forbidden transition.
adjective
-
not permitted by order or law
-
physics involving a change in quantum numbers that is not permitted by certain rules derived from quantum mechanics, esp rules for changes in the electrical dipole moment of the system
Usage
It was formerly considered incorrect to talk of forbidding someone from doing something, but in modern usage either from or to can be used: he was forbidden from entering/to enter the building
Other Word Forms
Etymology
Origin of forbidden
First recorded in 1200–50, for the adjective
Explanation
When something is forbidden, it's not allowed. You were forbidden to use your father's computer but you did it anyway — and that's why you're grounded. You may recognize the phrase "forbidden fruit," which refers to a famous Bible story about Adam and Eve in the Garden of Eden. They ate an apple that God had forbidden them to eat, and there were terrible consequences. "Forbidden fruit" refers to something you want even more than you might otherwise, because you're not allowed to have it. If you know a little German, you may notice that forbidden sounds like its German equivalent, verboten.
Vocabulary lists containing forbidden
Maniac Magee
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Code Talker
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myPerspectives 8.2
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
During his first term, China feted him like a favorite prince with various ceremonies: a private tour of the Forbidden City, followed by a performance by the Peking Opera and a huge state dinner.
From Salon • May 14, 2026
In November 2017, Xi honored Trump by making him the first foreign leader to dine in Beijing’s Forbidden City since the founding of modern China in 1949.
From The Wall Street Journal • May 13, 2026
UK Prime Minister Keir Starmer takes a tour of China's historic Forbidden City during a visit to the capital Beijing, following a bilateral meeting with President Xi Jinping.
From Barron's • Jan. 29, 2026
Turkey has been rapidly growing its military presence in the Forbidden Zone in recent years, but until now the scale of this expansion was not publicly known.
From BBC • Apr. 29, 2025
They didn’t have a car anymore; the old Ford Anglia they had once owned was currently running wild in the Forbidden Forest at Hogwarts.
From "Harry Potter And The Goblet Of Fire" by J. K. Rowling
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
