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Synonyms

taboo

American  
[tuh-boo, ta-] / təˈbu, tæ- /
Or tabu

adjective

  1. An image of the word taboo as defined by proscribed by society as improper or unacceptable.

    proscribed by society as improper or unacceptable.

    Taboo language is usually bleeped on TV.

    Synonyms:
    forbidden
    Antonyms:
    permissible, allowed
  2. prohibited or excluded from use or practice.

    In art school, painting from photographs was taboo.

  3. (among the Polynesians and other peoples of the South Pacific) separated or set apart as sacred; forbidden for general use; placed under a prohibition or ban.

    Synonyms:
    inviolable, sacrosanct

noun

  • taboos
    plural
  1. a prohibition or interdiction of anything; exclusion from use or practice.

    One of the strongest taboos in all modern societies is against incest.

    Synonyms:
    no-no, interdiction, embargo, proscription, ban
  2. (among the Polynesians and other peoples of the South Pacific)

    1. the system, practice, or act whereby things are set apart as sacred, forbidden for general use, or placed under a prohibition or interdiction.

    2. the condition of being so set apart, forbidden, or interdicted.

  3. exclusion from social relations; ostracism.

verb (used with object)

  • taboos,
    present (3rd person singular)
  • tabooed,
    past participle,  past
  • tabooing
    present participle
  1. to put under a taboo; prohibit or forbid.

    Synonyms:
    proscribe, forbid, ban, prohibit
    Antonyms:
    sanction, permit, allow
  2. to ostracize (a person, group, etc.).

    While he is tabooed, no one may speak to him.

taboo British  
/ təˈbuː /

adjective

  1. forbidden or disapproved of; placed under a social prohibition or ban

    taboo words

  2. (in Polynesia and other islands of the South Pacific) marked off as simultaneously sacred and forbidden

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. any prohibition resulting from social or other conventions

  2. ritual restriction or prohibition, esp of something that is considered holy or unclean

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to place under a taboo

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
taboo Cultural  
  1. A descriptive term for words, objects, actions, or people that are forbidden by a group or culture. The expression comes from the religion of islanders of the South Pacific.


Usage

What is taboo? Taboo describes an activity or behavior that is considered completely unacceptable or forbidden. A taboo is also the prohibition from engaging in such an activity or behavior through social rules, laws, religious doctrine, and even by your own conscience. Something considered taboo is considered unacceptable by the vast majority of a person’s social group. Often, there is a serious punishment for performing the taboo activity. Many activities that we refer to as crimes are examples of taboos, such as theft, murder, and kidnapping. These activities are considered unacceptable by the government or the law and have strict punishments. Sacred religious writings also outline specific activities as taboo and shouldn’t be done by the religion’s followers. For example, Jewish law considers pork to be taboo, so many Jewish people do not eat pork. Sometimes, taboos are so unacceptable to a society that laws are not needed to forbid people from doing them. Even thinking about them or reading about them can make you feel disgusted, which gives you an idea of how powerful the label of taboo can be.

Synonym Usage

See forbid.

Other Word Forms

Inflected Forms

Nouns

Participles

Conjugated Forms

Present

Past

Future


Etymology

Origin of taboo

First recorded in 1770–80; from Tongan tabu “forbidden, prohibited”; the spellings tabu and taboo both appear in Captain James Cook's journal in 1777


Explanation

Something considered taboo is naughty, something society considers a no-no. For example, it is taboo to ask people how much money they earn. Taboo is one of those rare words in the English language that doesn't have Greek or Latin or French roots, coming instead from the South Pacific Islands in the eighteenth century via the explorer Captain Cook. For many islanders some things were tabu, meaning not only could they not be done but they could not be talked about either for risk of offending the Gods. This latter meaning still applies today (minus the spiritual underpinning), when we say that certain subjects are "taboo," meaning off-limits for discussion.

Keep Reading on Vocabulary.com

Vocabulary lists containing taboo

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.

See Examples For:

Her brother Doug has returned from college with a girlfriend named Mary, an amiable busybody who keeps the wine flowing and gently but insistently guides the conversation to the household’s taboo subject.

From The Wall Street Journal ● Oct. 16, 2026

“A confluence of forces is leading to certain actions and choices that were considered taboo before now becoming acceptable and even celebrated, and then they spread via social contagion.”

From The Wall Street Journal ● Sep. 26, 2026

Schulz said it’s important to talk to parents about their finances even when such talks can be uncomfortable or even taboo in your family.

From MarketWatch ● Sep. 8, 2026

Moscow has been warned off, by friend and foe alike, not to break the 81-year long taboo on using nuclear weapons in anger.

From BBC ● Aug. 27, 2026

Well, that is the long story of how the foreigner from Benwick stole Queen Guenever’s love, of how he left her for his God and finally returned in spite of the taboo.

From "The Once and Future King" by T. H. White

“I think when you are making a film that is confronting one of the ultimate taboos in cinema, you’re going to have a tough time,” he says.

From Los Angeles Times ● Mar. 31, 2026

The 35-year-old, from Hebburn, South Tyneside, has now launched She Thrives, an online social community to dispel myths, but also to break down taboos about women's health.

From BBC ● Mar. 25, 2026

EU industry chief Stephane Sejourne celebrated the EU nuclear pivot Tuesday saying Brussels dared "to break certain taboos".

From Barron's ● Mar. 10, 2026

But to remain globally competitive, Chinese companies also incorporate materials from foreign websites, such as Wikipedia, that address taboos such as the Tiananmen Square massacre.

From The Wall Street Journal ● Dec. 24, 2025

His rebellious spirit made him violate all the taboos and consequently he always oscillated between moods of intense elation and depression.

From "Native Son" by Richard Wright

At the Harvard College library, the only copy was removed from the shelves “and kept under lock and key with other tabooed books,” Justin Kaplan wrote in “Walt Whitman. A Life.”

From Washington Post ● Apr. 30, 2022

Despite being one of the world’s favorite food categories — both nutritionally complete and widely considered tasty — meat is also the most tabooed food across many cultures.

From New York Times ● Dec. 27, 2021

Result: "Concern about death," says the University of Southern California's Psychologist Herman Feifel, "has been relegated to the tabooed territory heretofore occupied by diseases like tuberculosis and cancer, and the topic of sex."

From Time Magazine Archive

Mickey Rooney had lived backstage from the time he was two months old, and his approach to tabooed topics was decidedly more worldly and realistic than that of the average boy of his age.

From Time Magazine Archive

Discussion of the island was, ,by mutual consent, tabooed.

From "And Then There Were None" by Agatha Christie

But to guard against the possibility of any visual profanation, Donjalolo had authorized an edict, forever tabooing that rock to foot of man or pinion of fowl.

From Mardi: and A Voyage Thither, Vol. I by Herman Melville

But that's always the way in tabooing societies.

From The British Barbarians by Grant Allen

It is not unusual to find, on such occasions, a special clause, in the conveyance, for their protection, and for the perpetual tabooing of the place of sepulture.

From Dealings with the Dead, Volume I (of 2) by A Sexton of the Old School

Instead of tabooing our impulses, we must redirect them.

From A Preface to Politics by Walter Lippmann

Besides these taboos, which were observed by each tribe separately, all the Zulu tribes united in tabooing the name of the king who reigned over the whole nation.

From The Golden Bough by Sir James George Frazer

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