The antonyms for the word "most witting" could include "unwitting," "clumsy," "unintelligent," and "thoughtless." "Unwitting" means lacking awareness or knowledge, while "clumsy" implies a lack of coordination or gracefulness. "Unintelligent" suggests a lack of cognitive ability, and "thoughtless" indicates a lack of consideration or reflection. Other antonyms could include "ignorant," "naive," "unaware," and "unthinking." Overall, these antonyms suggest a lack of intelligence, awareness, or intentionality - qualities that are the opposite of what "most witting" implies.