6 letters · 8 points in Scrabble
adjective marked by blithe unconcern
adjective without or seeming to be without plan or method; offhand
adjective appropriate for ordinary or routine occasions
originFrom Middle French casuel, from Late Latin cāsuālis (“happening by chance”), from Latin cāsus (“event”) (English case), from cadere (“to fall”) (whence English cadence).
Etymology from Wiktionary, CC BY-SA 3.0