[1] : The Collaborative International Dictionary of English v.0.48

casual \cas"ual\, a. oe. casuel, f. casuel, fr. l. casualis,
   fr. casus fall, accident, fr. cadere to fall. see case.
   1. happening or coming to pass without design, and without
      being foreseen or expected; accidental; fortuitous; coming
      by chance.
      1913 webster

            casual breaks, in the general system. --w. irving.
      1913 webster

   2. coming without regularity; occasional; incidental; as,
      casual expenses.
      1913 webster

            a constant habit, rather than a casual gesture.
                                                  --hawthorne.

   syn: accidental; fortutious; incidental; occasional;
        contingent; unforeseen. see accidental.
        1913 webster
see also:
case accidental 

[2] : The Collaborative International Dictionary of English v.0.48

casual \cas"ual\, n.
   one who receives relief for a night in a parish to which he
   does not belong; a vagrant.
   1913 webster

[3] : WordNet (r) 2.0

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, chancea
     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, passinga, 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
see also:
insouciant nonchalant everyday accidental chancea cursory 
passinga perfunctory occasional fooling free-and-easy 
effortless 

[4] : Moby Thesaurus II by Grady Ward, 1.0

355 moby thesaurus words for "casual":
   bohemian, charley, mickey mouse, vc, vietcong, accessory,
   accidental, accidentally, additional, adscititious, adventitious,
   affable, aimless, airy, aleatory, almsman, almswoman, aloof,
   amorphous, apathetic, appurtenant, ascititious, ataractic,
   automatic, auxiliary, bankrupt, beggar, blanket, blase,
   blue-collar worker, breadwinner, breezy, bushfighter, bushwhacker,
   by-the-way, capricious, careless, casual laborer, casually,
   causeless, chance, chancy, charity case, circumstantial, clear,
   collateral, common, common laborer, conditional, contingent, cool,
   cordial, cursory, cushy, day laborer, degage, designless, destinal,
   desultory, detached, devil-may-care, dicey, disarticulated,
   discontinuous, disinterested, disjunct, disordered, dispassionate,
   dispersed, disproportionate, disregardant, disregardful,
   down-and-out, down-and-outer, driftless, dysteleological, easy,
   easy as pie, easygoing, effortless, employee, en deshabille,
   erratic, extemporaneous, extempore, extra, facile, factory worker,
   familiar, fatal, fatidic, fitful, flippant, fluky, flunky, folksy,
   forgetful, formless, fortuitous, fortuitously, free and easy,
   free lance, free-lancer, frivolous, full-time worker, general,
   glib, gracious, gratuitous, guerrilla, gut, hand, haphazard,
   happy-go-lucky, hardcase, haymish, heedless, hit-or-miss, homely,
   homey, iffy, ill-advised, ill-considered, ill-devised,
   immethodical, impromptu, improvised, imprudent, impulsive,
   in dishabille, inadvertent, inattentive, inchoate, incidental,
   incoherent, inconsiderable, inconsiderate, incurious, indeliberate,
   indeterminate, indifferent, indigent, indiscreet, indiscriminate,
   indiscriminative, industrial worker, inessential, inexcitable,
   inexplicable, informal, insensitive, insignificant, insouciant,
   involuntary, irregular, jobber, jobholder, laborer, laboring man,
   lackadaisical, lazy, light, listless, loose, lounge, low-pressure,
   maquis, maquisard, meaningless, menial, migrant, mindless, minor,
   misshapen, moiler, natural, navvy, negligent, nonchalant,
   nonessential, nonjudgmental, nonsystematic, nonuniform,
   nothing to it, oblivious, occasional, odd, off, offhand, offhanded,
   office temporary, orderless, out-of-the-way, painless,
   parenthetical, part-time, partisan, pauper, penniless man,
   perfunctory, petty, plain, planless, pococurante, poor devil,
   poor man, poorling, proletarian, promiscuous, provisional,
   purposeless, random, reckless, reflex, reflexive, regardless,
   relaxed, remote, resistance, resistance fighter, respectless,
   risky, roustabout, salaried worker, secondary,
   self-employed person, senseless, serendipitous, servant, shapeless,
   shoestring, side, simple, simple as abc, small-beer, smooth, snap,
   sociable, soft, spare, spasmodic, spontaneous, sporadic, sporty,
   starveling, stiff, stochastic, straggling, straggly,
   straightforward, stray, subsidiary, superadded, superfluous,
   supervenient, supplemental, supplementary, systemless, tactless,
   temporary, thoughtless, toiler, trained, trivial, turned-off,
   unaccountable, unadvised, unaffected, unanxious, unarranged,
   unassuming, unburdensome, uncalculated, uncaused, unceremonious,
   uncertain, unclassified, uncomplicated, unconcerned, unconscious,
   unconsidered, unconstrained, unconventional, uncritical,
   uncriticizing, undeliberate, undeliberated, undemanding,
   underground, underground fighter, undesigned, undetermined,
   undifferentiating, undiplomatic, undirected, undiscreet,
   undiscriminating, undiscriminative, unessential, unexacting,
   unexpected, unfastidious, unforeseeable, unforeseen, unfussy,
   ungraded, unheedful, unheeding, unimportant, unintended,
   unintentional, uninterested, unjoined, unlooked-for, unmeditated,
   unmethodical, unmeticulous, unmindful, unmotivated, unofficial,
   unordered, unorganized, unparticular, unplanned, unpredictable,
   unpremeditated, unprepared, unready, unselective, unsolicitous,
   unsorted, unstudied, unsubtle, unsure, unsymmetrical, unsystematic,
   untactful, unthinking, ununiform, unwilled, vague, wage earner,
   wage slave, wageworker, wandering, welfare client, wholesale,
   withdrawn, worker, workgirl, workhand, working girl, workingman,
   workingwoman, workman

[5] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

casual. what happens fortuitously what is accidental as, the casual 
revenue's of the government, are those which are contingent or uncertain. 

Casual >> C Words
Casual, definition of term: Casual
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