The French word "precieux" translates to "precious" or "valuable" in English. Some antonyms for this term include "worthless," "cheap," "inexpensive," "inferior," "common," and "ordinary." These words refer to things that do not have much value, either financially or sentimentally. In contrast, other antonyms for "precieux" can include "casual," "informal," "undistinguished," "unremarkable," and "unexceptional." These words describe things that lack the elegance and refinement that "precieux" implies. Overall, understanding the different antonyms for "precieux" can help expand one's vocabulary and better express ideas about value and quality.