What are the opposite words for more highest quality?

The antonyms for the phrase "more highest quality" are "lowest quality," "poorer quality," and "inferior quality." These words imply a lack of excellence, a decrease in value, or a downgrade in the level of a product or service. When we refer to something as having "the highest quality," we are describing a product or service that surpasses all others in terms of its excellence, and its antonyms suggest the opposite. It is essential to consider the quality of any product or service before making a purchase or using it, as it has a significant impact on your satisfaction and overall experience.