Here's what rhymes with unpremeditatively.
                        
                        
                    
                                meditatively  imitatively  creatively  qualitatively  authoritatively  appreciatively  collaboratively  legislatively  manipulatively  administratively  Words that almost rhyme with unpremeditatively
basically  pervasively  irritatingly  abrasively  amazingly  persuasively  evasively  hesitatingly  entertainingly  gratingly  piratically  titillatingly  jadedly  unfailingly  animatedly  deprecatingly  devastatingly  scathingly  penetratingly  ragingly  unhesitatingly  algebraically  prosaically  fascinatingly  unavailingly  accommodatingly  aggravatingly  intimidatingly  lackadaisically  nauseatingly  invigoratingly  engagingly  exaggeratedly  humiliatingly  illuminatingly  complicatedly  uncomplainingly  exasperatingly  calculatingly  infuriatingly  ingratiatingly  exasperatedly  excruciatingly