Optimacy is a relatively uncommon word that is used to describe the state of being optimal or the condition of being the best possible version of something. Some synonyms for optimacy include the words perfection, excellence, supremacy, superiority, and idealness. These words all describe a similar state of being and convey similar connotations of being the best or the most desired state of being. Other synonyms for optimacy might include terms like peak, pinnacle, or apex when referring specifically to a high point in one's performance or achievement. Regardless of the specific word used, all of these synonyms for optimacy are used to describe the state of being at one's best or achieving the highest level of success.