The term 'REALLY DRY' can be described by four crossword solutions: ARID (4 letters), BRUT (4 letters), SERE (4 letters), and SAHARAN (7 letters). ARID means extremely dry, BRUT is a French word meaning harsh or severe, SERE is a Latin word meaning dry or withered, and SAHARAN refers to the Sahara Desert, one of the driest places on Earth. Together, these words describe a situation that is extremely dry, harsh, withered, and similar to the Sahara Desert.