Words That Rhyme With "Radioactively" :

3 syllables:

actively, fictively, massively, nattily, passively, practically, tactically

4 syllables:

abstractedly, abstractively, adaptively, affectively, attractively, collectively, combatively, conductively, connectively, constructively, contractedly, contractively, contrastively, correctively, deductively, defectively, destructively, diffractively, directively, distractedly, distractively, effectively, electively, exactingly, impassively, inductively, instructively, invectively, objectively, obstructively, perspectively, proactively, productively, prospectively, protectively, protractedly, reactively, reductively, reflectively, respectively, restrictively, seductively, selectively, subjectively, unpractically, vindictively

5 syllables:

circumspectively, contradictively, counteractively, hyperactively, ineffectively, irrespectively, reconstructively, retroactively, retrospectively, unattractively, unproductively, unreflectively