Here's what rhymes with spectrographical.
graphical geographical biographical topographical typographical bibliographical autobiographical lexicographical historiographical Words that almost rhyme with spectrographical
classical fascicle neoclassical magical tragical pragmatical mechanical tactical tyrannical capitol mannitol theatrical botanical dynamical fanatical fanciful irascible sabbatical satanical problematical biomechanical fantastical puritanical monastical ecclesiastical mathematical electromechanical systematical expansible contractible nontheatrical