Noun | 1. | dependability - the quality of being dependable or reliable responsibleness, responsibility - a form of trustworthiness; the trait of being answerable to someone for something or being responsible for one's conduct; "he holds a position of great responsibility" solidity, solidness - the quality of being solid and reliable financially or factually or morally; "the solidity of the evidence worked in his favor"; "the solidness of her faith gave her enduring hope" infallibility - the quality of never making an error duplicability, reproducibility - the quality of being reproducible undependability, undependableness, unreliability, unreliableness - the trait of not being dependable or reliable |