1. Cheerfully irresponsible; SYN. devil-may-care, freewheeling, happy-go-lucky, harum-scarum, slaphappy.
2. Free of trouble and worry and care; SYN. unworried.

ETYM Old Eng. casuel, French casuel, from Latin casualis, from casus fall, accident, from cadere to fall. Related to Case.
1. Employed in a specified capacity from time to time; SYN. occasional.
2. Hasty and without attention to detail; not thorough; SYN. cursory, passing, perfunctory.
3. Marked by blithe unconcern; SYN. insouciant, nonchalant.
4. Not showing effort or strain; SYN. effortless.
5. Suited for everyday use; SYN. everyday.
6. Without or seeming to be without plan or method; offhand. + prikaži više

Free of restraints or rules.

ETYM French, from non not (Latin non) + chaloir to concern one's self for, from Latin calere to be warm, to be inflamed with desire, to be troubled. Related to Non-, and Caldron.
Indifferent; careless; cool.
Having an air of easy unconcern or indifference.

Casually thoughtless or inconsiderate; SYN. offhanded.

Not bound or pledged.