Another word for faithful
loyal, constant, devoted, dedicated, true, staunch, steadfast, reliable, dependable, trusty, dutiful, trustworthy, trusted, genuine, incorruptible, firm in adherence, resolute, straight, honest, upright, honorable, scrupulous, firm, sure, unswerving, conscientious, unwavering, enduring, unchanging, steady, committed, supportive, attached, obedient, allegiant, patriotic, sincere, trusting, confiding, veracious, truehearted, true-blue*, hard-core*, true as steel*, tried and true*, at the feet of*.
adherents of a faith, loyal members, believers, true believers, followers, supporters, congregation, the saved, the believing, the children of God.
faithful implies steadfast adherence to a person or thing to which one is bound as by an oath or obligation a faithful wife; loyal implies undeviating allegiance to a person, cause, institution, etc. which one feels morally bound to support or defend a loyal friend; constant suggests freedom from fickleness in affections or loyalties a constant lover; staunch (or stanch) implies such strong allegiance to one's principles or purposes as not to be turned aside by any cause a staunch defender of the truth; resolute stresses unwavering determination, often in adhering to one's personal ends or aims resolute in one's decision
Another word for faithfuladjective
Adhering firmly and devotedly, as to a person, a cause, or a duty:allegiant, constant, fast, firm1, liege, loyal, staunch, steadfast, true. See continue, trust
Worthy of belief, as because of precision or faithfulness to an original:authentic, authoritative, convincing, credible, true, trustworthy, valid. See true
Not deviating from correctness, accuracy, or completeness:close, exact, full, rigorous, strict. See careful
Conforming to fact:accurate, correct, exact, precise, right, rigorous, true, veracious, veridical. See correct, honest, real, true