What are the opposite words for over kills?

The term "overkill" refers to doing more than what is necessary or excessive. The antonyms for overkill would be "underkill" or "partial." Underkill refers to doing less than what is needed, and partial refers to doing only what is required without going overboard. By avoiding overkill, one can save time, money, and energy resources. At the same time, underkill or partial measures may not achieve the desired outcome, and one may have to put in more effort later on. Therefore, it is essential to find a balance between these opposite concepts and use the right approach according to the situation.