Sinistrally is a lesser-known adverb that describes something that moves or is oriented to the left side. While this term may not be widely used, there are still plenty of synonyms that can convey the same meaning. Some possible options include sinistral, leftwards, lefthandedly, portside, and widdershins. Sinistral refers to anything that pertains to or is inclined to the left side, while leftwards specifically implies movement or orientation towards that direction. Lefthandedly is often used to describe movements made with the left hand, portside refers to the left side of a ship or aircraft, and widdershins is an archaic term for moving in a counterclockwise direction.