Pocket Thesaurus
Antonyms of unfailingness
abidingness, adherence, allegiance, ardor, attachment, certainty, decision, dependability, determination, devotedness, devotion, doggedness, eagerness, earnestness, endurance, faith, fealty, fidelity, firmness, honesty, honor, integrity, love, loyalty, permanence, perseverance, principle, regularity, resolution, stability, staunchness, steadfastness, steadiness, surety, tenacity, trustiness, trustworthiness, truthfulness, unchangeableness, uniformity, zeal
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