Spill beans is a common expression meaning to reveal a secret or sensitive information. There are several antonyms, or opposite meanings, to this phrase. One could choose to keep a secret or withhold information instead of spilling the beans. Another opposite could be to deceive or mislead by providing false or misleading information, which is keeping the beans safely in the jar. In other contexts, one could also choose to dwell on a topic without revealing the full extent of knowledge about it. Alternatively, one could state the facts without elaboration, leaving no room for further discussion. All of these antonyms provide a contrast to the act of spilling the beans and showcase different ways of communicating knowledge and information.