Step 1: “Mundane” refers to something that is dull, ordinary, or lacking excitement. It often refers to the everyday or worldly aspects of life.
Step 2: “Worldly” is a close synonym to “mundane,” as it refers to matters related to the physical world, as opposed to spiritual or extraordinary matters.
Step 3: “Global” refers to something that is worldwide in scope, “futile” refers to something pointless, and “spatial” refers to things relating to space, all of which are unrelated to the meaning of “mundane.”
Thus, the correct answer is: “worldly.”