Stagnating rhymes with:
designating, impregnating, alienating, alternating, assassinating, chlorinating, concatenating, contaminating, coordinating, culminating, decaffeinating, designating, detonating, discriminating, disseminating, dominating, donating, eliminating, emanating, exterminating, fascinating, hydrogenating, hyphenating, illuminating, impersonating, impregnating, incriminating, laminating, marinating, nominating, originating, predominating, procrastinating, rejuvenating, resonating, subordinating, terminating, urinating