The phrase "silent majority" refers to a group of people who hold opinions or beliefs but do not express them publicly. Synonyms for this term include the "quiet majority," "passive majority," or "voiceless majority." Other expressions that are similar in meaning include "mute masses," "invisible majority," and "unsung multitude." In politics or sociology, the term "hidden majority" may be used to describe this group, while the term "shadow population" is used more broadly to encompass those who are not often heard or seen. Alternatively, the phrase "underrepresented majority" may also be used to describe this group, highlighting their lack of visibility in decision-making processes.