1.Definition: belonging to this earth or world; not ideal or heavenly

"Not a fairy palace; yet a mundane wonder of unimagined kind"

Related Adjective(s):terrene

2.Definition: concerned with the world or worldly matters

"Mundane affairs"

Related Adjective(s):terrestrial

3.Definition: found in the ordinary course of events

Related Adjective(s):everyday, quotidian, routine, unremarkable, workaday