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