Fidelity meaning: Fidelity definition

Fidelity definition: strict observance of promises, duties, etc... See examples of FIDELITY used in a sentence. Fidelity means honest or lasting support, or loyalty, especially to a sexual partner, or the degree to which a copy shows the true character of the original. Learn more about the word, its synonyms, and its usage in different contexts. 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. Fidelity definition : Exact correspondence with fact or with a given quality, condition, or event; accuracy.