1. (a.) Suddenly appearing; arising unexpectedly\; calling for prompt action; urgent.

2. (a.) Rising or emerging out of a fluid or anything that covers or conceals; issuing; coming to light.

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