faithfulness(n = noun.attribute) fidelity - the quality of being faithful;
is a kind of quality
has particulars: constancy, dedication, loyalty, trueness
Antonym: unfaithfulness
Derived forms adjective faithful₂, adjective faithful₁, adjective faithful₃

   the trait of being faithful. [WordNet 1.5]

N  probity, integrity, rectitude, uprightness, honesty, faith, honor, bonne foi, good faith, bona fides, purity, clean hands, fairness, fair play, justice, equity, impartiality, principle, even-handedness, grace, constancy, faithfulness, fidelity, loyalty, incorruption, incorruptibility, trustworthiness, truth, candor, singleness of heart, veracity, tender conscience, punctilio, delicacy, nicety, scrupulosity, scrupulousness, scruple, point, point of honor, punctuality, dignity, (repute), respectability, respectableness, gentilhomme, gentleman, man of honor, man of his word, fidus Achates, preux chevalier, galantuomo, truepenny, trump, brick, true Briton, white man, court of honor, a fair field and no favor, argumentum ad verecundiam, upright, honest, honest as daylight, veracious, virtuous, honorable, fair, right, just, equitable, impartial, evenhanded, square, fair and aboveboard, open and aboveboard, white, constant, constant as the northern star, faithful, loyal, staunch, true, true blue, true to one's colors, true to the core, true as the needle to the pole, marble-constant, true- hearted, trusty, trustworthy, as good as one's word, to be depended on, incorruptible, straightforward, frank, candid, open-hearted, conscientious, tender-conscienced, right-minded, high-principled, high-minded, scrupulous, religious, strict, nice, punctilious, correct, punctual, respectable, reputable, gentlemanlike, inviolable, inviolate, unviolated, unbroken, unbetrayed, unbought, unbribed, innocent, pure, stainless, unstained, untarnished, unsullied, untainted, unperjured, uncorrupt, uncorrupted, undefiled, undepraved, undebauched, integer vitae scelerisque purus, justus et tenax propositi, chivalrous, jealous of honor, sans peur et sans reproche, high-spirited, supramundane, unworldly, other-worldly, overscrupulous, honorable, bona fide, on the square, in good faith, honor bright, foro conscientiae, with clean hands, a face untaught to feign, bene qui latuit bene vixit, mens sibi conscia recti, probitas laudatur et alget, fidelis ad urnam, his heart as far from fraud as heaven from earth, loyaute m'oblige, loyaute n'a honte, what stronger breastplate than a heart untainted?.