旁若無人

to act as though there were nobody else present / unselfconscious / fig. without regard for others

one side / other / different / lateral component of a Chinese character (such as 刂[dao1], 亻[ren2] etc)

to seem / like / as / if

not to have / no / none / not / to lack / un- / -less

unmanned / uninhabited

person; people / CL:個|个[ge4],位[wei4]