'Impending' definitions:

Definition of 'impending'

(from WordNet)
adjective
Close in time; about to occur; "retribution is at hand"; "some people believe the day of judgment is close at hand"; "in imminent danger"; "his impending retirement" [syn: at hand(p), close at hand(p), imminent, impendent, impending]

Definition of 'Impending'

From: GCIDE
  • Impend \Im*pend"\, v. i. [imp. & p. p. Impended; p. pr. & vb. n. Impending.] [L. impend[=e]re; pref. im- in + pend[=e]re to hang. See Pendant.] To hang over; to be suspended above; to threaten from near at hand; to menace; to be imminent. See Imminent. [1913 Webster]
  • Destruction sure o'er all your heads impends. --Pope. Impendence

Definition of 'Impending'

From: GCIDE
  • Impending \Im*pend"ing\, a. Hanging over; overhanging; suspended so as to menace; imminet; threatening. [1913 Webster]
  • An impending brow. --Hawthorne. [1913 Webster]
  • And nodding Ilion waits th' impending fall. --Pope.
  • Syn: Imminent; threatening. See Imminent. [1913 Webster]

Synonyms of 'impending'

From: Moby Thesaurus

Words containing 'Impending'