The antonyms for the phrase "more stammering" could be fluid, fluent, articulate, eloquent, smooth, and glib. These words describe the ability to speak without hesitation, repetition, or prolonged pauses. Someone who is able to speak fluently can convey their thoughts and ideas with ease, clarity, and precision. On the other hand, those who stammer or stutter may face challenges when it comes to effective communication. By working on improving their speech and overcoming their stammer, individuals can achieve greater confidence and success in their personal and professional lives.