The antonyms for the phrase "more small fry" are words that mean the complete opposite. If something is considered small, then the antonym would be large or big. Other antonyms for the word small include huge, massive, significant, substantial, and considerable. Similarly, fry can be referred to as a small, young fish, in which case the antonyms would be mature, adult, or full-grown. Another possible antonym for the phrase "small fry" could be "big fish" which refers to people or things that are of great importance or significant value. Overall, the antonyms for the phrase "more small fry" include big, significant, mature, and important.