Money in bank, a term commonly used to connote financial security, can have various antonyms depending on the context. If one talks about lack of funds or financial difficulty, the antonyms could be debt, bankruptcy, or insolvency. However, if the context is related to a financial obligation or liability, then the antonyms for money in the bank could be expense, outflow, or payment due. In the case of investments, antonyms could be losses, decline, or negative returns. Overall, the antonyms for money in the bank represent financial instability or a lack of resources and highlight the importance of budgeting and financial planning for long-term financial security.