The phrase "gat load of" implies a large amount or quantity of something. Antonyms for this phrase could include "scant", "few", "little", "minimum", "modest", or "tiny". These words suggest a more limited or insufficient quantity of something. Using antonyms for "gat load of" can be valuable in creating contrast and variation in language. Employing different vocabulary and syntax choices can add depth and nuance to writing, making it more engaging and interesting to readers.