The word 'choiciest' refers to the finest or highest quality among the available options. Its antonyms include suboptimal, mediocre, or poor. These describe things that are of low quality or not up to one's expectations. Another antonym for 'choiciest' is 'worst,' which describes something that is the poorest among the available options. It could also be said that an antonym for 'choiciest' is 'average,' which implies something that is neither great nor terrible but falls somewhere in between. When making choices, it is important to consider a variety of options and not just settle for the choiciest one, as there may be better alternatives available.