Antonyms for the term systematic processes could be unorganized, chaotic, random or haphazard. A system or process that is not systematic could lack structure, organization, or a clear plan. Without a defined plan, steps or goals, there could be no clear end result or objective. Moreover, there could be no standard or procedure for doing something, which could make the process unreliable, ineffective, unpredictable or inefficient. Lack of system or process could also lead to errors or mistakes. Therefore, it is essential to have a systematic approach to work for proper management, organization and planning to achieve better results.