Here's what rhymes with chtonological.
logical illogical analogical topological biological technological theological ecological pathological chronological geological neurological ontological mythological phonological typological zoological dialogical gynaecological urological psychological ideological morphological genealogical pedagogical teleological ethnological mineralogical serological gynecological tautological dermatological ethological horological speleological physiological archaeological sociological methodological epidemiological eschatological immunological astrological etiological philological radiological archeological terminological aetiological hematological toxicological haematological ornithological audiological histological meteorological pharmacological phenomenological hydrological embryological biotechnological neuropsychological bacteriological musicological microbiological neurophysiological psychophysiological electrophysiological Words that almost rhyme with chtonological
tropical prodigal periodical subtropical nontropical semitropical microscopical astronautical conical chronicle comical ironical rhetorical dropsical hospital economical metaphorical diabolical uneconomical historical philosophical paradoxical categorical symbolical ahistorical unhistorical theosophical taxonomical pocketsful astronomical gastronomical prehistorical