Answer: tectonic

AnswerCrossword Clue
TECTONICLike some really big plates
TECTONICArchitectural.
TECTONICOf architectural construction.
TECTONICPertaining to construction
TECTONICLike some plates
TECTONICLike a geological fault
tectonicpertaining to construction
tectonicof or relating to tectonics