Fencesitting refers to the act of remaining neutral or undecided on an issue or topic. The opposite of fencesitting is taking a definitive stance or position. Synonyms for the opposite of fencesitting include outspokenness, decisiveness, assertiveness, conviction, and determination. Antonyms for fencesitting include terms such as indecisiveness, uncertainty, ambiguity, hesitancy, vacillation, and complacency. In summary, the antonyms for fencesitting highlight the importance of taking a clear and committed stand on issues, rather than remaining undecided or neutral.