The phrase "worked out a deal" refers to successfully negotiating an agreement between two parties. The antonyms for this expression include terms such as "failed to come to terms," "could not find common ground," "disagreed," and "no agreement reached." These terms convey the opposite meaning to "worked out a deal" and suggest that negotiations were unsuccessful. Other antonyms for this phrase might include words such as "abandoned," "halted," or "terminated," which indicate that discussions ended without resolution. It is essential to understand the antonyms for this phrase to accurately communicate the success or failure of negotiations.