THESAURUS
off chance
bare possibility, chance, conceivability, conceivableness, contingency, dark horse, even chance, eventuality, fighting chance, gambling chance, good chance, good possibility, hardly a chance, hope, hundred-to-one shot, improbability, likelihood, little chance, little opportunity, long odds, long shot, outside chance, outside hope, poor bet, poor lookout, poor possibility, poor prospect, possibility, possibleness, potential, potentiality, probability, prospect, remote possibility, slim chance, small chance, small hope, the attainable, the feasible, the possible, thinkability, thinkableness, unlikelihood, virtuality, what is possible, what may be, what might be