fidelity
UK /fɪˈdɛlɪti/ · US /fɪˈdɛləti/ noun
Forms fidelities
- noun (uncountable) Often followed by to or towards: faithfulness or loyalty towards a person, a group, one's civic or moral duties, etc.; allegiance; (countable) an instance of this. “the fidelity of the civil servants to their country”
- noun Faithfulness or loyalty to one's partner or spouse, including restraint from romantic or sexual relationships with third parties.
- noun (archaic) Faithfulness to God and one's religion.
- noun Accuracy, or exact correspondence, to some given fact or quality; exactness.
- noun (ecology) The closeness of association between an organism and a plant community.
- noun (technology) Chiefly in high fidelity, low fidelity, etc.: the degree to which a system accurately reproduces an input such as an image or sound.
- noun (countable) In by one's fidelity, to break fidelity, to give fidelity, etc.: one's pledge or promise to act in good faith; an oath, a word of honour.
- noun (uncountable) Of a person: honesty, trustworthiness; (countable) an instance of this.
Synonyms
Antonyms
Etymology
From Late Middle English fidelite (“allegiance, fealty; faithfulness, trust; agreement made in good faith”), from Old French fidélité (“faithfulness, fidelity”) (modern French fidélité), from Latin fidēlitās (“faithfulness, fidelity”), from fidēlis (“dependable, trustworthy; faithful, loyal”) + -tās (suffix forming feminine abstract nouns denoting a state of being). Fidēlis is derived from fidēs (“belief, faith; confidence, trust; loyalty, fidelity; etc.”) (from Proto-Indo-European *bʰidʰ-, the zero-grade of *bʰeydʰ- (“to convince; to trust”) (whence English bide)) + -ēlis (a variant of -ālis (suffix forming adjectives of relationship)). Doublet of fealty.
Webster’s 1913
- noun Faithfulness; adherence to right; careful and exact observance of duty, or discharge of obligations. Especially: (a) Adherence to a person or party to which one is bound; loyalty.
Etymology [L. fidelitas: cf. F. fidélité. See Fealty.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “fidelity”, CC BY-SA 4.0. Details