偶然的

(1)without or seeming to be without plan or method; offhand; "a casual remark"; "information collected by casual methods and in their spare time"

(2)計画や方法がない、またはないように見えるさま

(3)何気ない

(4)occurring or appearing or singled out by chance; "seek help from casual passers-by"; "a casual meeting"; "a chance occurrence"

(5)偶然起こるか、現れることまたは特別に扱われる

(1)