1. (a.) Preceding as a precursor or harbinger; indicating something to follow; as, precursory symptoms of a fever.

2. (n.) An introduction.

antecedent anterior augural chief exordial first foreboding foregoing foremost forerunning foreshadowing foreshowing foretokening forewarning heading headmost heavy with meaning inaugural indicative initiatory intuitive leading meaningful monitory portentous precautional precautionary precedent preceding precessional precursive predictive prefatory prefigurative preindicative preliminary preludial prelusive premonitory preparatory presageful presaging prevenient prior prodromal prodromic proemial prognostic prognosticative propaedeutic significant warning