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