Read the dictionary definition of casual. All definitions for this word.
1. hasty and without attention to detail; not thorough
1. a casual (or cursory) inspection failed to reveal the house's structural flaws
2. a passing glance
3. perfunctory courtesy
4. In his paper, he showed a very superficial understanding of psychoanalytic theory
2. marked by blithe unconcern
1. an ability to interest casual students
2. showed a casual disregard for cold weather
3. an utterly insouciant financial policy
4. an elegantly insouciant manner
5. drove his car with nonchalant abandon
6. was polite in a teasing nonchalant manner
3. not showing effort or strain
1. a difficult feat performed with casual mastery
2. careless grace
4. appropriate for ordinary or routine occasions
1. casual clothes
2. everyday clothes
5. natural and unstudied
1. using their Christian names in a casual way
2. lectured in a free-and-easy style
6. characterized by a feeling of irresponsibility
1. a broken back is nothing to be casual about; it is no fooling matter
7. occurring or appearing or singled out by chance
1. seek help from casual passers-by
2. a casual meeting
3. a chance occurrence
8. without or seeming to be without plan or method; offhand
1. a casual remark
2. information collected by casual methods and in their spare time
9. occurring on a temporary or irregular basis
1. casual employment
2. a casual correspondence with a former teacher
3. an occasional worker