Faithful

Full of faith; having faith, trust, or fidelity; firm in adherence to the truth and to the duties of religion; firmly adhering to duty; of true fidelity; loyal; true to allegiance; constant in the performance of duties or services; trusty; observant of compacts, treaties, contracts, vows, .; true to one's word; true; exact; true to the marriage-covenant; conformable to truth; constant; worthy of belief. Faithfully, adv. In a faithful manner; with good faith.