The term "rinkydink" means something that is small, insignificant or inferior in quality. Its antonyms can be several words that depict something that is large, important or superior in quality. Some notable antonyms for rinkydink could include grandiose, noteworthy, remarkable, impressive, substantial, superior, and significant. These words mirror the opposite of rinkydink, and they portray characteristics of something that is significant, relevant and valuable. Using antonyms of rinkydink in your writing or everyday conversation can provide better clarity, precision and emphasis. So, next time you come across something that is rinkydink, make use of appropriate antonyms to articulate your thoughts effectively.