Swallowed the pill is a common idiom used to refer to accepting or coming to terms with an unpleasant truth or situation. There are several other phrases that can be used as synonyms for this idiom, such as biting the bullet, facing the music, accepting one's fate, making peace with something, owning up to something, and confronting reality. Each of these phrases suggests a willingness to acknowledge and deal with a difficult situation rather than ignoring it or avoiding it. By using these synonyms, we can convey the same message but in a different way, giving us the chance to add variety to our vocabulary.