Decapitated rhymes with:
amputated, debilitated, facilitated, gravitated, imitated, premeditated, rehabilitated, amputated, debilitated, facilitated, gravitated, hesitated, imitated, incapacitated, levitated, mutated, orientated, overstated, precipitated, premeditated, rehabilitated, resuscitated, rotated, understated
Decapitated sounds like:
daspit, decapitate, deceived, despite, despot, disabato, disavowed, disobeyed, dispute, disputed, dissipate, dissipated, djibouti