Have to admit I used a cool word huh?
"...I used a cool word huh?"
Since most 4th graders know that "terra" means earth and 2nd graders have sorted out "sub," in order to be impressed you must be repeating the 3rd grade, huh?
Even spelled it out right!!
Is "bottomless" a synonym of "subterranean"?? 'cause I don't see a "coming off" part just yet.