1.
faithful, loyal, devoted
Steadfastly devoted to a person, cause, or duty. Used for people, animals, or attitudes that show unwavering loyalty.
2.
faithful, true to, accurate
Accurately reproducing or following the original. Used for translations, adaptations, or reproductions that closely match their source.
Related Words
Synonym:
誠実 (sincere, honest)
Related:
忠誠 (loyalty, allegiance)
Compare:
誠実な (sincere)