Infinitesimalnesses refers to the extremely small and minute size of something. When describing such traits, several synonyms can be used, including minuteness, atomism, imperceptibility, and tiny. These synonyms help emphasize the smallness of something and aid in describing microscopic or microscopic qualities. Other possible synonyms for infinitesimalnesses include negligible, insubstantial, minor, and insignificant. Despite its long length, the word expresses a particular and precise meaning, and this meaning can be conveyed through the use of other, shorter words that convey the same meaning of smallness and insignificance.