fidelity

noun
fi·​del·​i·​ty | \ fə-ˈde-lə-tē How to pronounce fidelity (audio) , fī-\
plural fidelities

Definition of fidelity

1a : the quality or state of being faithful his fidelity to his wife
b : accuracy in details : exactness The movie's director insisted on total fidelity to the book.
2 : the degree to which an electronic device (such as a record player, radio, or television) accurately reproduces its effect (such as sound or picture)

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Choose the Right Synonym for fidelity

fidelity, allegiance, fealty, loyalty, devotion, piety mean faithfulness to something to which one is bound by pledge or duty. fidelity implies strict and continuing faithfulness to an obligation, trust, or duty. marital fidelity allegiance suggests an adherence like that of citizens to their country. pledging allegiance fealty implies a fidelity acknowledged by the individual and as compelling as a sworn vow. fealty to the truth loyalty implies a faithfulness that is steadfast in the face of any temptation to renounce, desert, or betray. valued the loyalty of his friends devotion stresses zeal and service amounting to self-dedication. a painter's devotion to her art piety stresses fidelity to obligations regarded as natural and fundamental. filial piety

Have a Little Faith in Fidelity

You can have faith in "fidelity," which has existed in English since the 15th century; its etymological path winds back through Middle English and Middle French, eventually arriving at the Latin verb fidere, meaning "to trust." "Fidere" is also an ancestor of other English words associated with trust or faith, such as "fiduciary" (which means "of, relating to, or involving a confidence or trust" and is often used in the context of a monetary trust) and "confide" (meaning "to trust" or "to show trust by imparting secrets"). Nowadays "fidelity" is often used in reference to recording and broadcast devices, conveying the idea that a broadcast or recording is "faithful" to the live sound or picture that it reproduces.

Examples of fidelity in a Sentence

Yet as Reardon emphasizes early on, fidelity to facts was never the point. The same dinner with friends could appear over and over in Fisher's published work, rejiggered each time to make a different point. — Laura Shapiro, New York Times Book Review, 12 Dec. 2004 It is a world familiar to all children, and it is this fidelity to child life that gives resonance to Hoffmann's tale and makes it an extraordinary work of art. — Maurice Sendak, Caldecott & Co., 1988 Chaucer's patient Griselda proved her fidelity to her husband by resisting the prodigious reasons he gave her for being unfaithful. — B. F. Skinner, Beyond Freedom and Dignity, 1971 music with much higher fidelity than on cassettes they have never wavered in their fidelity to the cause of freedom
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Recent Examples on the Web

Billed as the world's first ever 3D 5.1 surround sound HiFi earphones, these bad boys deliver unmatched fidelity that even top name brands are lacking. Popular Mechanics, "These High Fidelity Surround Sound Earphones Are Going for Cheap," 8 May 2019 In part, this has to do with subject matter—with the way adultery and its associations (fidelity, betrayal, trust, unity, domesticity) became useful metaphors for larger issues. Daniel Mendelsohn, Town & Country, "How Infidelity Helped Create the Novel," 2 May 2019 The interface is somewhat simpler than the desktop version, and although the same Photoshop code is running under the hood to ensure there's no loss of fidelity, not every feature will be available in the mobile version. Peter Bright, Ars Technica, "The full Photoshop CC is coming to the iPad in 2019," 15 Oct. 2018 With Microsoft and Google, fidelity will always be limited by your internet speed—not to mention, any data caps your ISP’s put in place. Hayden Dingman, PCWorld, "Steam Link Anywhere lets you play your Steam library on the go," 14 Mar. 2019 Conservatives claim to believe in nominating judges who put fidelity to the law above policy preferences. The Editorial Board, WSJ, "Josh Hawley’s Bad Judgment," 25 Feb. 2019 The target here is to get single-operation fidelities well over 0.99. Chris Lee, Ars Technica, "Qubits kept together by shouting at them with microwaves," 5 Oct. 2018 Or is that some vision from the future, where the Man in Black has become another robot, running through his tragic final day in the park over and over again as some test of fidelity? The Atlantic, "Westworld: Is This Now?," 24 June 2018 However, those implementations are nowhere near 50 qubits, while the schemes—involving super-conducting loops as qubits—that can scale to 50 qubits probably have another order of magnitude to go in gate fidelities. Chris Lee, Ars Technica, "Random quantum circuit easiest way to beat classical computer," 1 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fidelity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fidelity

15th century, in the meaning defined at sense 1a

History and Etymology for fidelity

Middle English fidelite, borrowed from Middle French fidelité, borrowed from Latin fidēlitāt-, fidēlitās, from fidēlis "faithful, loyal, trustworthy" (from fidē-, stem of fidēs "trust, belief, faith" +-lis, denominal suffix of appurtenance) + -itāt-, -itās -ity

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Statistics for fidelity

Last Updated

16 Jun 2019

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Time Traveler for fidelity

The first known use of fidelity was in the 15th century

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More Definitions for fidelity

fidelity

noun

English Language Learners Definition of fidelity

: the quality of being faithful to your husband, wife, or sexual partner
: the quality of being faithful or loyal to a country, organization, etc.
: the degree to which something matches or copies something else

fidelity

noun
fi·​del·​i·​ty | \ fə-ˈde-lə-tē How to pronounce fidelity (audio) , fī-\

Kids Definition of fidelity

1 : loyalty They swore fidelity to the king.
2 : accuracy I described the scene with fidelity.

fidelity

noun
fi·​del·​i·​ty | \ fə-ˈde-lə-tē, fī- How to pronounce fidelity (audio) \

Legal Definition of fidelity

: the quality or state of being faithful or loyal especially : loyalty to one's spouse in refraining from adultery and sometimes in submitting to a spouse's reasonable sexual desires

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More from Merriam-Webster on fidelity

Thesaurus: All synonyms and antonyms for fidelity

Spanish Central: Translation of fidelity

Nglish: Translation of fidelity for Spanish Speakers

Britannica English: Translation of fidelity for Arabic Speakers

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