The phrase "most runted" refers to something or someone that is abnormally small or stunted. Some possible synonyms for this term could include "undersized," "pint-sized," "shrimpy," "diminutive," "tiny," "petite," "miniature," "dwarfed," "minute," "smallish," "short-statured," "stumpy," or "wee." These terms all convey a sense of being smaller than normal or expected, and can be used to describe anything from a plant to an animal to a person. Whether used in a scientific context or a colloquial conversation, these synonyms for "most runted" can help convey the idea of something being unusually small.