Standard Lemma guide

fidelity

noun · 7 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /fɪˈdɛl.ɪ.ti/
  • /faɪˈdɛl.ɪ.ti/
  • US: /fᵻˈdɛlədi/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: F AH0 D EH1 L AH0 T IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: F AY2 D EH1 L AH0 T IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Faithfulness to one's moral or civic duties.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Examples

  • the fidelity of the civil servants

Meaning relationships

Synonyms: allegiance

Antonyms: none provided

2

noun

Meaning 2

Loyalty to one's spouse or partner, including abstention from cheating or extramarital affairs.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: infidelity

3

noun

Meaning 3

Accuracy, or exact correspondence to some given quality or fact.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The degree to which a system accurately reproduces an input.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Faithfulness to God and one's religion.

Definition source: English Wiktionary via Wiktextract

Usage: archaic, countable, uncountable

Examples

  • Near-synonym: faith

Meaning relationships

Synonyms: faith

Antonyms: infidelity, irreligion, nullifidianism

Broader terms: loyalty

6

noun

Meaning 6

accuracy with which an electronic system reproduces the sound or image of its input signal

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: accuracy, truth

7

noun

Meaning 7

the quality of being faithful

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: faithfulness

Antonyms: infidelity

Broader terms: quality

Narrower terms: constancy, dedication, loyalty, trueness

History

Etymology

15th century, from Middle English [Term?], from Middle French fidélité, from Latin fidēlitās, from fidēlis (“faithful”), from fidēs (“faith, loyalty”) (English faith), from Proto-Indo-European *bhidh-, zero-grade of *bheydh- (“to command, to persuade, to trust”) (English bide). Doublet of fealty.

Across languages

Translations

88 source translations are retained for this English entry.

  • Arabic: إِخْلَاص (ʔiḵlāṣ) — faithfulness to one's duties
  • Arabic: وَلَاء (walāʔ) — faithfulness to one's duties
  • Bulgarian: преданост (predanost) — faithfulness to one's duties
  • Catalan: fidelitat — faithfulness to one's duties
  • Cherokee: ᎪᎯᏳᏗ (gohiyudi) — faithfulness to one's duties
  • Chinese Mandarin: 忠實 /忠实 (zhōngshí) — faithfulness to one's duties
  • Chinese Mandarin: 忠誠 /忠诚 (zhōngchéng) — faithfulness to one's duties
  • Finnish: uskollisuus — faithfulness to one's duties
  • Finnish: lojaalius — faithfulness to one's duties
  • French: fidélité — faithfulness to one's duties
  • Galician: fidelidade — faithfulness to one's duties
  • German: Redlichkeit — faithfulness to one's duties
  • Hungarian: hűség — faithfulness to one's duties
  • Icelandic: tryggð — faithfulness to one's duties
  • Italian: fedeltà — faithfulness to one's duties
  • Central Kurdish: ڕاستگۆیی (rastgoyî) — faithfulness to one's duties
  • Latin: fidelitas — faithfulness to one's duties
  • Malay: kesetiaan — faithfulness to one's duties
  • Māori: pirihonga — faithfulness to one's duties
  • Māori: pirihonge — faithfulness to one's duties
  • Māori: pirihongi — faithfulness to one's duties
  • Māori: ngākaupono — faithfulness to one's duties
  • Persian: صداقت (sedāqat) — faithfulness to one's duties
  • Persian: درستی (dorosti) — faithfulness to one's duties
  • Persian: راستگویی (rāstguyi) — faithfulness to one's duties
  • Portuguese: fidelidade — faithfulness to one's duties
  • Portuguese: lealdade — faithfulness to one's duties
  • Romanian: fidelitate — faithfulness to one's duties
  • Russian: ве́рность (vérnostʹ) — faithfulness to one's duties
  • Spanish: fidelidad — faithfulness to one's duties
  • Swedish: trohet — faithfulness to one's duties
  • Swedish: plikttrohet — faithfulness to one's duties
  • Tamil: நேர்மை (nērmai) — faithfulness to one's duties
  • Turkish: sadakat — faithfulness to one's duties
  • Ottoman Turkish: صداقت (sadakat) — faithfulness to one's duties
  • Ukrainian: ві́рність (vírnistʹ) — faithfulness to one's duties
  • Bulgarian: точност (točnost) — accuracy, or exact correspondence to some given quality or fact
  • Bulgarian: прецизност (preciznost) — accuracy, or exact correspondence to some given quality or fact
  • Chinese Mandarin: 逼真度 — accuracy, or exact correspondence to some given quality or fact
  • Finnish: tarkkuus — accuracy, or exact correspondence to some given quality or fact
  • Finnish: täsmällisyys — accuracy, or exact correspondence to some given quality or fact
  • Galician: fidelidade — accuracy, or exact correspondence to some given quality or fact
  • German: Genauigkeit — accuracy, or exact correspondence to some given quality or fact
  • Hebrew: דיוק (diyúk) — accuracy, or exact correspondence to some given quality or fact
  • Hungarian: hűség — accuracy, or exact correspondence to some given quality or fact
  • Hungarian: pontosság — accuracy, or exact correspondence to some given quality or fact
  • Polish: wierność — accuracy, or exact correspondence to some given quality or fact
  • Portuguese: fidelidade — accuracy, or exact correspondence to some given quality or fact
  • Russian: то́чность (tóčnostʹ) — accuracy, or exact correspondence to some given quality or fact
  • Spanish: fidelidad — accuracy, or exact correspondence to some given quality or fact
  • Swedish: exakthet — accuracy, or exact correspondence to some given quality or fact
  • Welsh: ffyddlondeb — accuracy, or exact correspondence to some given quality or fact
  • Welsh: manyldeb — accuracy, or exact correspondence to some given quality or fact
  • Bulgarian: вярност (vjarnost) — loyalty, especially to one's spouse
  • Chinese Mandarin: 忠貞 /忠贞 (zhōngzhēn) — loyalty, especially to one's spouse
  • Finnish: uskollisuus — loyalty, especially to one's spouse
  • Galician: fidelidade — loyalty, especially to one's spouse
  • German: Treue — loyalty, especially to one's spouse
  • Hebrew: נאמנות (ne'emanút) — loyalty, especially to one's spouse
  • Hungarian: hűség — loyalty, especially to one's spouse
  • Hungarian: ragaszkodás — loyalty, especially to one's spouse
  • Icelandic: tryggð — loyalty, especially to one's spouse
  • Irish: dílseacht — loyalty, especially to one's spouse
  • Māori: piripono — loyalty, especially to one's spouse
  • Polish: wierność — loyalty, especially to one's spouse
  • Portuguese: fidelidade — loyalty, especially to one's spouse
  • Portuguese: lealdade — loyalty, especially to one's spouse
  • Russian: лоя́льность (lojálʹnostʹ) — loyalty, especially to one's spouse
  • Spanish: fidelidad — loyalty, especially to one's spouse
  • Swedish: trohet — loyalty, especially to one's spouse
  • Tamil: நேர்மை (nērmai) — loyalty, especially to one's spouse
  • Tamil: ஒழுக்கம் (oḻukkam) — loyalty, especially to one's spouse
  • Turkish: sadık — loyalty, especially to one's spouse
  • Ukrainian: ві́рність (vírnistʹ) — loyalty, especially to one's spouse
  • Welsh: ffyddlondeb — loyalty, especially to one's spouse
  • Catalan: fidelitat — the degree to which an electronic system accurately reproduces a given sound or image
  • Chinese Mandarin: 保真度 (bǎozhēndù) — the degree to which an electronic system accurately reproduces a given sound or image
  • Finnish: toistokyky — the degree to which an electronic system accurately reproduces a given sound or image
  • Galician: fidelidade — the degree to which an electronic system accurately reproduces a given sound or image
  • Hebrew: נאמנות למקור (ne'emanút lamakór) — the degree to which an electronic system accurately reproduces a given sound or image
  • Irish: dílseacht — the degree to which an electronic system accurately reproduces a given sound or image
  • Japanese: 忠実度 (chūjitsudo) — the degree to which an electronic system accurately reproduces a given sound or image
  • Polish: wierność — the degree to which an electronic system accurately reproduces a given sound or image
  • Portuguese: fidelidade — the degree to which an electronic system accurately reproduces a given sound or image
  • Russian: ка́чество (káčestvo) — the degree to which an electronic system accurately reproduces a given sound or image
  • Spanish: fidelidad — the degree to which an electronic system accurately reproduces a given sound or image
  • Swedish: fidelitet — the degree to which an electronic system accurately reproduces a given sound or image
  • Swedish: exakthet — the degree to which an electronic system accurately reproduces a given sound or image