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Pronunciation:  u'keyzhunl

WordNet Dictionary
  1. [adj]  occurring or appearing at usually irregular intervals; "episodic in his affections"; "occasional headaches"
  2. [adj]  employed in a specified capacity from time to time; "casual employment"; "a casual correspondence with a former teacher"; "an occasional worker"

OCCASIONAL is a 10 letter word that starts with O.


 Synonyms: casual, episodic, irregular, unpredictable



Webster's 1913 Dictionary
\Oc*ca"sion*al\, a. [Cf.F. occasionnel.]
1. Of or pertaining to an occasion or to occasions; occuring
   at times, but not constant, regular, or systematic; made
   or happening as opportunity requires or admits; casual;
   incidental; as, occasional remarks, or efforts.

         The . . . occasional writing of the present times.

2. Produced by accident; as, the occasional origin of a
   thing. [Obs.] --Sir T. Browne.

{Occasional cause} (Metaph.), some circumstance preceding an
   effect which, without being the real cause, becomes the
   occasion of the action of the efficient cause; thus, the
   act of touching gunpowder with fire is the occasional, but
   not the efficient, cause of an explosion.

Thesaurus Terms
 Related Terms: accessory, accidental, accompanying, additional, ado, adventitious, afloat, afoot, aleatory, auxiliary, behind the scenes, by-the-way, casual, causal, causative, ceremonial, circumstantial, conditional, constitutive, contingent, current, decisive, determinative, doing, effectual, etiological, eventuating, extra, few, formative, going on, happening, in hand, in the wind, incidental, inessential, infrequent, institutive, intermittent, irregular, nonessential, occurring, odd, off, on, on foot, ongoing, originative, out-of-the-way, parenthetical, particular, part-time, passing, periodic, pivotal, prevailing, prevalent, provisional, random, rare, resultant, ritual, scarce, seldom, side, spare, special, sporadic, supplementary, taking place, uncommon, under way, unessential, unfrequent