What is another word for "nonperformance"?

Roget's Thesaurus (1911) lists these synonyms for "nonperformance": addle, alone, anvil, battle, collapse, complete, down, drawn, drop, fall, fire, forget, game, going, halves, hand, hang, incomplete, incompleteness, inexecution, leave, let, lose, lull, neglect, noncompletion, nonfulfillment, not, ongoing, out, oven, parboil, proceeding, progress, put, scotch, short, shortcoming, sight, sketchy.