Words That Rhyme With "Slightingly" :
3 syllables:
bindingly, bitingly, cuttingly, dotingly, drivingly, fittingly, gratingly, mattingly, mightily, smilingly, strikingly, wittingly
4 syllables:
abidingly, admiringly, befittingly, confidingly, designingly, excitingly, farsightedly, invitingly, surprisingly, unitedly, unsmilingly, unwittingly