Mechanical rhymes with:
electromechanical, electromechanical, electromechanical, botanical, electromechanical, puritanical, tyrannical, barnicle, botanical, chronicle, conical, cynical, ecumenical, electromechanical, ethnical, galenical, grossnickle, ironical, monical, nontechnical, preclinical, puritanical, rabbinical, senecal, senechal, technical, tyrannical
Mechanical sounds like:
massengale, massengill, massingale, massingill, mcgonagle, mcgonigal, mcgonigle, mcmanigal, mcmichael, mcmickle, mcmonagle, mcmonigle, mcnichol, mcnickle, mcnicol, mechanically, menacingly