Words That Rhyme With "Portentously" :
3 syllables:
centrally, endlessly, fennelly, jealously, kennelly, mentally, preciously, quenchlessly, restlessly, senselessly, ventrally, zealously
4 syllables:
defencelessly, defenselessly, dependently, eventfully, fragmentally, horrendously, licentiously, momentously, parentally, relentlessly, repentantly, resplendently, stupendously, subcentrally, tendenciously, tendentiously, tremendously
5 syllables:
accidentally, compartmentally, complementally, conscientiously, continentally, departmentally, detrimentally, dorsiventrally, dorsoventrally, elementally, fundamentally, incidentally, incrementally, independently, instrumentally, interdentally, monumentally, ornamentally, overzealously, regimentally, sacramentally, sentimentally, temperamentally, transcendentally, unrepentantly
6 syllables:
coincidentally, developmentally, environmentally, experimentally, interdependently, unsentimentally