资料来源 : pyDict

先驱的,前兆的,作预备的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Precursory \Pre*cur"so*ry\, a. [L. praecursorius.]
   Preceding as a precursor or harbinger; indicating something
   to follow; as, precursory symptoms of a fever.

Precursory \Pre*cur"so*ry\, n.
   An introduction. [Obs.]

资料来源 : WordNet®

precursory
     adj : warning of future misfortune [syn: {premonitory}]