Synonyms of fast-approaching

1 Syllable
nigh, next, near
2 Syllables
looming, brewing, nearing, coming, close
3 Syllables
possible, following, expectant, probable, imminent, approaching, likely, forthcoming, impending, menacing, gathering, threatening
4 Syllables
immediate, overhanging
5 Syllables
inevitable, inevasible, unescapable, inescapable, unavoidable, ineluctable
6 Syllables
handwriting-on-the-wall