P3A1R1E1N1T1H4E1T1I1C3A1L1
20 points
PARENTHETICAL is validvalid
[adj] : PARENTHETICALLY [adv]
relating to parenthesis, also PARENTHETIC [adj PARENTHETICALLY]
[adj] : PARENTHETICALLY [adv]
relating to parenthesis, also PARENTHETIC [adj PARENTHETICALLY]