mundane vs terrestrial

mundane and terrestrial both are adjectives.

Word	Noun	Adjective	Verb	Adverb
mundane	No	Yes	No	No
terrestrial	No	Yes	No	No

As adjectives, mundane and terrestrial are synonyms defined as:

mundane (adjective)	terrestrial (adjective)
belonging to this earth or world; not ideal or heavenly	operating or living or growing on land
found in the ordinary course of events	of or relating to or inhabiting the land as opposed to the sea or air
concerned with the world or worldly matters	of or relating to or characteristic of the planet Earth or its inhabitants
	of this earth
	concerned with the world or worldly matters