The opposite of "more bluffing" can be described as "less bluffing." Bluffing is defined as the act of deceiving others by making false statements or actions, often in a game or contest. If someone is bluffing more, they are increasing their level of deception. However, if they are bluffing less, they are reducing their level of deception. A person who is not bluffing at all can be described as genuine or honest. The concept of honesty is the complete opposite of bluffing, and therefore, the antonym for "more bluffing." In essence, being truthful and transparent with others is the most effective way to build trust and maintain positive relationships.