tacit
Americanadjective
-
understood without being openly expressed; implied.
tacit approval.
- Synonyms:
- implicit, unsaid, unspoken, unexpressed
-
silent; saying nothing.
a tacit partner.
-
unvoiced or unspoken.
a tacit prayer.
adjective
-
implied or inferred without direct expression; understood
a tacit agreement
-
created or having effect by operation of law, rather than by being directly expressed
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.
Vocabulary lists containing tacit
Lord of the Flies
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To Kill a Mockingbird
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"To Kill a Mockingbird" by Harper Lee, Chapters 20–25
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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.
"Machines cannot read our tacit knowledge and we cannot read theirs," he writes.
From Science Daily ● Jul. 14, 2026
By tacit agreement, everything Charles did or didn’t do was definitionally something someone with cooties would or wouldn’t do.
From The Wall Street Journal ● Jun. 10, 2026
“But unlike physical abuse and neglect, financial abuse is more likely to occur with the tacit acknowledgment and consent of the elder person and can be more difficult to detect and establish,” it adds.
From MarketWatch ● May 25, 2026
Designer Gianni Versace challenged this tacit rule in his Fall/Winter 1991 collection.
From Salon ● May 17, 2026
Another firestorm can be extinguished by recalling that the conventions of usage are tacit.
From "The Sense of Style" by Steven Pinker
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.
