Walking radical wrapping the bottom-left, the simplified three-stroke form of
辵 (a foot stepping along a path). The indexing radical, marking
逆 as motion in the wrong direction — going against the current, defying authority, doing the unexpected (
逆流,
叛逆,
逆向). Same motion-family:
进 advance,
退 retreat,
顺 to follow / go with the flow (the direct antonym of
逆).
