1.Definition: appropriate for ordinary or routine occasions
2.Definition: characterized by a feeling of irresponsibility
"A broken back is nothing to be casual about; it is no fooling matter"
3.Definition: hasty and without attention to detail; not thorough
"A casual (or cursory) inspection failed to reveal the house's structural flaws"
4.Definition: marked by blithe unconcern
"An ability to interest casual students", "Showed a casual disregard for cold weather"
5.Definition: natural and unstudied
"Using their Christian names in a casual way"
6.Definition: not showing effort or strain
"A difficult feat performed with casual mastery"
7.Definition: occurring on a temporary or irregular basis
"Casual employment", "A casual correspondence with a former teacher"
8.Definition: occurring or appearing or singled out by chance
"Seek help from casual passers-by", "A casual meeting"
9.Definition: without or seeming to be without plan or method; offhand
"A casual remark", "Information collected by casual methods and in their spare time"