The word "loppy" is not frequently used and may not have many widely recognized synonyms. However, some alternatives for "loppy" include "flaccid," "limp," "droopy," and "slouchy." These words may be used to describe something that is lacking in firmness or structure, such as loose clothing or overcooked vegetables. Additionally, the word "saggy" could also be considered a synonym for "loppy," as it implies a lack of tension or support. Despite the limited number of synonyms available for "loppy," each of these words can be used to describe similar qualities and can help to convey a specific meaning or impression in writing or speech.