Here's what rhymes with gigantology.
ontology biology apology geology anthology oncology gynaecology ideology theology pathology ecology etiology mythology astrology typology cytology zoology neurology tautology ethology gerontology audiology penology urology technology psychology methodology chronology morphology cosmology genealogy aetiology etymology histology embryology ethnology hydrology meteorology mineralogy radiology cardiology climatology dermatology entomology gynecology paleontology serology doxology hematology numerology anthropology physiology sociology terminology archaeology criminology immunology toxicology archeology ophthalmology phrenology epidemiology phenomenology pharmacology bacteriology microbiology psychopathology biotechnology endocrinology nanotechnology Words that almost rhyme with gigantology
polity jollity quality majority authority minority equality priority sorority inequality frivolity prodigality policy bodily colony botany prodigy ontogeny possibly autonomy partially prophecy anomaly idolatry solemnly lawfully progeny solidly prophesy unlawfully broccoli colloquy doggedly dorsally homily sodomy topically androgyny caudally jauntily stolidly tardily wobbly probably economy commonly normally formally harmony monopoly biography geography geometry morally astronomy cautiously dichotomy heartily modesty novelty cordially mahogany monotony pharmacy thoughtfully uncommonly apostasy autocracy impartially larceny mortally plausibly wrongfully impossibly monogamy solvency thoughtlessly cacophony dormancy loftily pompously philosophy democracy sovereignty consciously markedly forcibly hypocrisy photography topography unconsciously abnormally dishonesty forcefully horribly informally modestly warranty demography iconography insolvency wantonly anatomically apostrophe improbably mammography mournfully normalcy phylogeny theocracy typography gorgeously harmlessly incautiously morbidly psychopathy sarcophagi aristocracy bureaucracy importantly constancy enormously forestry pornography reportedly carpentry orthography radiography scornfully choreography disharmony lithography oligopoly peremptorily dishonestly meritocracy oceanography constantly bibliography remarkably autobiography paradoxically despondency inconstancy responsibly subconsciously deplorably hagiography monstrously remorselessly horizontally demonstrably cinematography historiography preponderantly