Fanatical rhymes with:
mathematical, problematical, sabbatical, viatical, acoustical, alphabetical, analytical, antithetical, apolitical, astronautical, biopharmaceutical, critical, dialectical, ecclesiastical, egotistical, elliptical, floptical, geopolitical, heretical, hypercritical, hypocritical, identical, logistical, mathematical, mystical, nonpolitical, optical, parenthetical, pharmaceutical, problematical, sabbatical, statistical, tactical, testicle, theoretical, uncritical, vertical, viatical