The term "most waffling" refers to someone who is incessantly indecisive or hesitant. Antonyms of this term could include words such as resolute, decisive, strong-willed, or firm. These words describe individuals who are determined in their actions, confident in their decisions, and are not easily swayed in their beliefs. Being resolute indicates a steadfastness and unwavering commitment to a particular direction. Similarly, a decision-maker is someone who makes definitive choices based on careful considerations. The term strong-willed describes someone who is unwavering in their convictions and is not easily influenced by external factors. Finally, being firm involves holding fast to one's beliefs or decisions, even in the face of adversity.