Words That Rhyme With "Grudgingly" :
3 syllables:
cousinly, cunningly, cuttingly, edgingly, gushingly, hummingly, lovingly, numbingly, soughingly, stunningly, touchingly
4 syllables:
becomingly, disgustingly, engagingly, exultingly, insultingly, obligingly, resultingly, unblushingly, ungrudgingly