Something that is mundane is very ordinary and not at all interesting or unusual.
Be willing to do mundane tasks with good grace.
欣然主动地承担平凡的工作。
You can refer to mundane things as the mundane.
It's an attitude that turns the mundane into something more interesting and exciting.
正是这种态度使得单调平凡的工作变得更加有趣和刺激。