Synonyms of fidelity in English:

fidelity


See definition of fidelity

noun

1‘she was never tempted to stray from fidelity to her husband’

SYNONYMS
faithfulness, loyalty, constancy
devotedness, devotion, commitment, adherence
true-heartedness, trustworthiness, trustiness, honesty, dependability, reliability
monogamy
archaic troth
ANTONYMS

disloyalty, infidelity

2‘fidelity to your king’

SYNONYMS
loyalty, allegiance, obedience, constancy, fealty, homage
staunchness, fastness

3‘the fidelity of the reproduction’

SYNONYMS
accuracy, exactness, exactitude, precision, preciseness, correctness, scrupulousness
strictness, closeness, faithfulness, correspondence, literalness, conformity
realism, verisimilitude, veracity, authenticity, naturalism
ANTONYMS

inaccuracy