fidelity

noun

fi·​del·​i·​ty fə-ˈde-lə-tē How to pronounce fidelity (audio)
fī-
plural fidelities
1
a
: 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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Have a Little Faith in Fidelity

Fidelity came to English by way of French in the 15th century, and can ultimately be traced back to the Latin fidēlis, meaning "faithful, loyal, trustworthy." While fidelity was originally exclusively about loyalty, it has for centuries also been used to refer to accuracy, as in “questions about the fidelity of the translation.” 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.

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

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
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Yet, the most intriguing finding was their apparent fidelity to specific regions, particularly the waters east of Taiwan. Melissa Cristina Marquez, Forbes, 31 Oct. 2024 Our greatest responsibility as the Catholic Church is fidelity to the Gospel and sharing the saving mission of Christ. Enquirer Staff, The Enquirer, 29 Oct. 2024 Imagine a cabin ceiling that morphs into a conservatory with a spectacular view of the moon, or full-height windows that present the landscape below with incredible fidelity. Daniel Cote, Robb Report, 26 Oct. 2024 The fireworks have fizzled, and all that’s left to do is feign fidelity. Karen D'souza, The Mercury News, 25 Oct. 2024 See all Example Sentences for fidelity 

Word History

Etymology

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 — more at faith entry 1

First Known Use

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

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

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Dictionary Entries Near fidelity

Cite this Entry

“Fidelity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fidelity. Accessed 26 Nov. 2024.

Kids Definition

fidelity

noun
fi·​del·​i·​ty fə-ˈdel-ət-ē How to pronounce fidelity (audio)
fī-
plural fidelities
1
a
: the quality or state of being faithful
b
: exactness in details
2
: the degree to which an electronic device (as a record player, radio, or television) correctly reproduces its effect (as sound or a picture)

Legal Definition

fidelity

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

More from Merriam-Webster on fidelity

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