Synonyms for Impending:

adj.

approaching (adjective)
proximate, converging, Nearing, forthcoming, nearby, closing, approaching, coming, advancing, near, Looming, imminent, expected.
close (adjective)
around the corner.
forthcoming (adjective)
Looming, approaching, imminent, menacing, proximate, Nearing, at hand, coming, near, in the offing.

n.

just, soon, shortly, any day/moment etc. now, in the short run/term, at the earliest/first opportunity, in no time (at all), around the corner. momentary. impending (noun)
at hand, imminent, close, close at hand.

v.

approaching (verb)
Looming, advancing, coming, converging, Gaining, Nearing, approaching, closing, menacing, accessing.
ensuing (verb)
following, Eventuating, Destining, resulting, developing.

Other synonyms:

momentary. Other relevant words:
soon, at hand, just, menacing, shortly, in the offing, close, close at hand, momentary, around the corner.

Usage examples for impending

  1. It was evident that the summer was giving a hint of impending departure. – A Top-Floor Idyl by George van Schaick
  2. Instinctively you run backward to escape what seems an impending destruction. – Elsie at Nantucket by Martha Finley
  3. The owner and his wife, comparatively newcomers, were seated upon the veranda, evidently not aware of impending danger. – Mark Twain, A Biography, 1835-1910, Complete The Personal And Literary Life Of Samuel Langhorne Clemens by Albert Bigelow Paine Last Updated: February 20, 2009