The phrase "most relucent" refers to someone extremely hesitant or unwilling to speak or act. Its antonyms, therefore, would be words that describe the opposite scenario, where a person is bold, eager, or unreserved. Some antonyms for "most relucent" include vocal, expressive, forthcoming, open, talkative, extroverted, gregarious, and communicative. These words paint a picture of an individual who is confident and unafraid to express their thoughts or opinions. If you are looking to convey the opposite meaning of "most relucent," you can use these antonyms to describe a person who is transparent, animated, and engaging.