Super incumbent refers to a task, duty or responsibility that is extremely demanding and burdensome. The word 'super' in this context means excessive or over and above. However, several antonyms can be used to express the opposite meaning of super incumbent. The first antonym could be straightforward or easy, which refers to a task that requires minimal effort or is simple to execute. Another antonym could be effortless, which means a task that requires little or no physical or mental exertion to complete. Similarly, lightweight, undemanding, and manageable are some other antonyms that could be used to refer to a task that is not burdensome or excessively demanding.