H4Y4P3E1T1H4R1A1L1
20 points
HYPETHRAL is validvalid
roofless
roofless; open to the sky (usually intentionally, so as to see the stars), also HUPAITHRIC, HYPAETHRAL, UPAITHRIC
roofless
roofless; open to the sky (usually intentionally, so as to see the stars), also HUPAITHRIC, HYPAETHRAL, UPAITHRIC