emergent

emergent
    adj 1: occurring unexpectedly and requiring urgent action;
           "emergent repair of an aorta"
    2: coming into existence; "an emergent republic" [syn:
       {emergent}, {emerging}]
    

Emergent \E*mer"gent\, a. [L. emergens, p. pr. of emergere.]
   1. Rising or emerging out of a fluid or anything that covers
      or conceals; issuing; coming to light.
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            The mountains huge appear emergent.   --Milton.
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   2. Suddenly appearing; arising unexpectedly; calling for
      prompt action; urgent.
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            Protection granted in emergent danger. --Burke.
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   {Emergent year} (Chron.), the epoch or date from which any
      people begin to compute their time or dates; as, the
      emergent year of Christendom is that of the birth of
      Christ; the emergent year of the United States is that of
      the declaration of their independence. -- {E*mer"gent*ly},
      adv. -- {E*mer"gent*ness}, n. [R.]
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48 Moby Thesaurus words for "emergent":
      approaching, arising, charged, climacteric, coming, critical,
      crucial, decisive, desired, destinal, destined, determined,
      emanating, emanative, emanent, emerging, eventual, exigent,
      extrapolated, fatal, fated, fatidic, forthcoming, future,
      futuristic, hereafter, hoped-for, imminent, issuing, kairotic,
      later, loaded, nearing, pivotal, planned, plotted, predicted,
      pregnant, probable, projected, prophesied, prospective, surfacing,
      to come, to-be, transeunt, transient, ultimate