THESAURUS
faithworthy
calculable, dependable, faithful, fast, firm, incorruptible, invincible, inviolable, predictable, proven, reliable, responsible, secure, solid, sound, stable, staunch, steadfast, steady, straight, substantial, sure, surefire, tested, to be trusted, tried, tried and true, true, trustable, trustworthy, trusty, unfailing, unfalse, unperfidious, untreacherous, well-founded, well-grounded
