The Oxford Thesaurus An A-Z Dictionary of Synonyms - faithfuladj.

1) true, loyal, devoted, steadfast, dedicated, attached, unswerving, firm, staunch, unwavering, constant: He has always remained faithful to his wife. 2) close, exact, accurate, true, correct, precise, perfect, valid; literal: Jowett's is a faithful translation from the Greek. 3) conscientious, dutiful, scrupulous, careful, meticulous, thorough, punctilious, finicky or finical, detailed, fastidious, rigorous, rigid, severe, particular: He received a gold watch for fifty years of faithful attendance to his duties. 4) reliable, dependable, trusted, trustworthy, trusty, honest, true, truthful, righteous, right, moral, virtuous, upright, veracious: He has remained my faithful friend for many years.