The term "usually supposed" implies that a certain belief or assumption is commonly held among people. Some synonyms for this phrase include "generally believed," "commonly accepted," "widely thought," "popularly assumed," and "customarily believed." These phrases suggest that a particular idea or concept is generally acknowledged or taken for granted by a majority of individuals. Other synonyms for "usually supposed" include "commonly presumed," "traditionally accepted," "conventionally assumed," and "typically considered." These terms all convey a sense of prevailing opinion or accepted wisdom, and are often used to emphasize the ubiquity of a certain belief or understanding.