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tacit

American  
[tas-it] / ˈtæs ɪt /

adjective

  1. understood without being openly expressed; implied.

    tacit approval.

    Synonyms:
    implicit, unsaid, unspoken, unexpressed
  2. silent; saying nothing.

    a tacit partner.

  3. unvoiced or unspoken.

    a tacit prayer.


tacit British  
/ ˈtæsɪt /

adjective

  1. implied or inferred without direct expression; understood

    a tacit agreement

  2. created or having effect by operation of law, rather than by being directly expressed

"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

Other Word Forms

Etymology

Origin of tacit

First recorded in 1595–1605; from Latin tacitus “silent,” past participle of tacēre “to be silent” (cognate with Gothic thahan; akin to Old Norse thegja )

Explanation

Something tacit is implied or understood without question. Holding hands might be a tacit acknowledgment that a boy and girl are dating. The adjective tacit refers to information that is understood without needing to acknowledge it. For example, since we know that the sky is blue, that kind of assumption is tacit. Lawyers talk about "tacit agreements," where parties give their silent consent and raise no objections.

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Vocabulary lists containing tacit

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.

Tacit elevator agreements will start to coalesce, and you won’t have to bother with a formal question-and-answer session every time the door opens.

From Slate • Oct. 24, 2019

Tacit approval is one thing, of course; the Grand Master Award is another.

From Los Angeles Times • Nov. 28, 2018

Tacit orders from Vitaly Mutko, the current Russian deputy prime minister who served eight years as Minister of Sport under Putin.

From Los Angeles Times • Jan. 19, 2017

Tacit and implied support for Mr. Emanuel from President Obama, former President Clinton and Mayor Daley were also factors.

From New York Times • Feb. 27, 2011

Tacit Paction is either when a person who hath made no express Paction, useth the Words or Signs which Sorcerers use, knowing them to be such....

From The Witch-cult in Western Europe A Study in Anthropology by Murray, Margaret Alice