The word "trashest" is used to describe something that is of poor quality or lacking in value. However, there are a number of other words that can be used as synonyms for this term. Some of the most common include "junk," "rubbish," "garbage," "trash," "waste," "debris," "clutter," and "detritus." These words all refer to things that are considered to be of little or no value, and they can be used interchangeably depending on the context. When trying to express disdain or disappointment with something, these words can be a useful way to convey the sentiment without resorting to harsher language.