Synonyms of faithfulness in English:

faithfulness


See US English definition of faithfulness

See UK English definition of faithfulness

See Spanish definition of fidelidad

noun

1‘she never doubted her husband's faithfulness’

SYNONYMS
fidelity, loyalty, constancy, devotion, trueness, true-heartedness, dedication, commitment, allegiance, adherence
dependability, reliability, trustworthiness, staunchness, steadfastness
historical fealty
ANTONYMS

unfaithfulness

2‘the faithfulness of the description’

SYNONYMS
accuracy, precision, exactness, closeness, strictness, fairness, justness, factuality, truth, truthfulness, veracity, authenticity, reliability, dependability
rare veridicality
ANTONYMS

inaccuracy