The phrase "most vocative" refers to someone or something that is excessively or overly expressive, usually vocally. The antonyms or opposites of this term would, therefore, be words that denote the opposite of being intentionally expressive. The words that fit this description include words like quiet, silent, subdued, reserved, low-key, reticent, and unobtrusive. These words describe a person or situation where the expression is under control, restrained, and subtle. Such words indicate a demeanor of someone who is calm, collected, and not given to being emotionally or vocally over the top. In summary, the antonyms or opposite of "most vocative" represent a more restrained and subtle approach to self-expression.