There are several antonyms for the phrase "didst job," which means to complete or perform a task satisfactorily. One antonym is "failed," meaning to be unsuccessful in achieving the desired outcome. Another antonym is "neglected," which means to pay little or no attention to a task or responsibility. "Abandoned" is another antonym, meaning to give up or never finish a task. "Incomplete" is yet another antonym, indicating that the job was not finished properly or didn't meet the required specifications. It's important to strive for success and completion in all tasks we undertake, even when faced with challenges and obstacles.