If you feel guilty, you feel unhappy because you think that you have done something wrong or have failed to do something which you should have done. 内疚的
adjective [原级]内疚的,羞愧的;有罪的,有过失的
Guilty is used of an action or fact that you feel guilty about. 罪恶的 • Many may be keeping it a guilty secret. 许多人可能将它作为一个罪恶的秘密保守着。