Here's what rhymes with phenotypical.
                        
                        
                    
                                atypical  untypical  prototypical  archetypical  stereotypical  Words that almost rhyme with phenotypical
critical  analytical  uncritical  apolitical  noncritical  unpolitical  geopolitical  hypocritical  supercritical  nonpolitical  parasitical  hypercritical  overcritical  sociopolitical  psychoanalytical  physical  cynical  lyrical  umbilical  rabbinical  tricycle  finical  empirical  mystical  elliptical  inimical  logistical  rhythmical  whimsical  egotistical  nonphysical  arrhythmical  statistical  metaphysical  subliminal  sophistical  cylindrical  encyclical  preclinical  impermissible  noncriminal  egoistical  indivisible