Antonyms for the word "acts response" can include inaction, non-response, apathy, indifference, or neglect. Inaction refers to the lack of taking action or making a response. Non-response is the deliberate ignoring of a situation, request or inquiry. Apathy relates to a lack of interest, enthusiasm or concern, therefore resulting in a lack of response. Indifference means lack of care, concern or consideration and neglect relates to a lack of attention or inability to respond properly. In sum, antonyms for "acts response" refer to the negative aspects of not taking appropriate action, which can result in negative outcomes.