muchísima
Muchísima is an informal Spanish adjective used to express a very large quantity or intensity. It is the feminine singular form of the superlative adjective "muchísimo," which derives from "mucho" (much, a lot). The masculine singular form is "muchísimo," the feminine plural is "muchísimas," and the masculine plural is "muchísimos."
"Muchísima" is employed to emphasize the abundance or extreme degree of something. For example, one might say
While grammatically correct, "muchísima" and its variations are generally considered more colloquial and less formal than