Meaning & use

fidelity

noun·Academic

Faithfulness to a person, cause, or duty, shown through continuing loyalty and support.

See it in a sentence

He was praised for his fidelity to the company during its most difficult years.

The couple renewed their vows of fidelity on their twentieth anniversary.

A note on using this word

Fidelity can also describe the accuracy of a reproduction, as in 'high fidelity' sound, meaning close to the original.

Words with a similar meaning

loyaltyfaithfulnessallegiance

Choose a synonym to suit the sentence. Meanings can overlap without being identical.

Words with an opposite meaning

disloyaltyinfidelity

Another way to use it

2. noun

The degree of exactness with which something, especially sound or data, is reproduced.

The new speakers offer remarkable fidelity compared to the old stereo.

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