The term "Small G Proteins" refers to a class of proteins that play critical roles in regulating a wide range of biological processes, including cell growth, apoptosis, and cell signaling. However, when looking for antonyms for this term, we might consider words such as "large," "macromolecular," "complex," or "multimeric." These words emphasize the opposite end of the spectrum, where molecules are characterized by their size, complexity, or number of subunits. Although small G proteins play a vital role in cell biology, the opposite end of the scale may also play critical roles in many other biological processes, such as DNA replication, protein synthesis or complex formation.