Antonyms for the word "most consenting" can vary based on the context in which the phrase is used. For instance, in a legal or ethical scenario, the antonyms could be "non-consenting," "unwilling," "forced," or "coerced." Alternatively, in a more mundane context such as a survey, antonyms could be "non-participating," "indifferent," or "disinterested." In general, the primary antonyms for "most consenting" involve a lack of willingness, agreement, or participation, but the exact opposite will depend on the specific context and circumstances in which the phrase is employed.