ca·su·al /ˈkæʒwəl, ˈkæʒəwəl, ˈkæʒəl/
 (a.)偶然的,碰巧的;臨時的,不定期的;漫不經心的,隨便的,非正式的


 casual
 非正式 不定期


 Cas·u·al a.
 1. Happening or coming to pass without design, and without being foreseen or expected; accidental; fortuitous; coming by chance.
    Casual breaks, in the general system.   --W. Irving.
 2. Coming without regularity; occasional; incidental; as, casual expenses.
    A constant habit, rather than a casual gesture.   --Hawthorne.
 Syn: -- Accidental; fortutious; incidental; occasional; contingent; unforeseen. See Accidental.


 Cas·u·al, n. One who receives relief for a night in a parish to which he does not belong; a vagrant.

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 casual
      adj 1: marked by blithe unconcern; "an ability to interest casual
             students"; "showed a casual disregard for cold
             weather"; "an utterly insouciant financial policy";
             "an elegantly insouciant manner"; "drove his car with
             nonchalant abandon"; "was polite in a teasing
             nonchalant manner" [syn: insouciant, nonchalant]
      2: without or seeming to be without plan or method; offhand; "a
         casual remark"; "information collected by casual methods
         and in their spare time"
      3: suited for everyday use; "casual clothes"; "everyday
         clothes" [syn: everyday]
      4: occurring or appearing or singled out by chance; "their
         accidental meeting led to a renewal of their friendship";
         "seek help from casual passers-by"; "a casual meeting"; "a
         chance occurrence" [syn: accidental, chance(a)]
      5: hasty and without attention to detail; not thorough; "a
         casual (or cursory) inspection failed to reveal the
         house's structural flaws"; "a passing glance";
         "perfunctory courtesy" [syn: cursory, passing(a), perfunctory]
      6: employed in a specified capacity from time to time; "casual
         employment"; "a casual correspondence with a former
         teacher"; "an occasional worker" [syn: occasional]
      7: characterized by a feeling of irresponsibility; "a broken
         back is nothing to be casual about; it is no fooling
         matter" [syn: fooling]
      8: natural and unstudied; "using their Christian names in a
         casual way"; "lectured in a free-and-easy style" [syn: free-and-easy]
      9: not showing effort or strain; "a difficult feat performed
         with casual mastery"; "careless grace" [syn: effortless]