The term "abnormally large" refers to something that is larger than expected or usual. In the context of antonyms, it would be appropriate to consider words that describe things that are smaller than usual or expected. Some antonyms for "abnormally large" include "normal," "average," "typical," "ordinary," "regular," and "standard." Other possible antonyms that are more contrasting include "tiny," "little," "small," "minuscule," "microscopic," and "diminutive." These antonyms paint a completely different picture from "abnormally large," ranging from what is considered normal to the complete opposite end of the scale, such as tiny and microscopic.