Antonyms refer to the words that are opposed to or opposite in meaning to a particular word. In the case of "Autonomic Nerve Block," its antonyms could be "stimulation," "activation," or "enhancement" of the autonomic nervous system. While a nerve block aims to inhibit or reduce the activity of the nerves selectively, stimulation or enhancement of the same nerves causes an increase in their activity. Therefore, an autonomic nerve block leads to a decrease in vital functions, whereas their activation would increase them. In some medical conditions, such as hypotension, an autonomic nerve block may be a suitable treatment option, while in other cases, stimulation may be preferred.