Synonyms for the term "sinistral left" encompass various phrases that indicate a left-handed inclination or preference. When referring to someone's dominant hand being the left hand, common synonyms include "left-handed," "southpaw," or "lefty." In certain contexts, the term "sinistral" itself can be used to convey a leftward inclination, primarily in scientific or technical settings. Additionally, phrases like "left-leaning" or "southpaw tendencies" can describe someone's general inclination toward favoring or utilizing their left hand. These synonyms aptly capture the notion of being left-handed, indicating the opposite of being right-handed and offering a range of alternatives for describing this characteristic.