Why this word is great
INEFFABILITY — [Noun] The quality or state of being incapable of expression in words; unspeakableness. From Latin ineffabilitas, from in- ("not") + effabilis ("speakable, utterable"), from effari ("to speak out"). Unlike “inexpressibility,” which suggests a general failure of vocabulary, or “indescribability,” which focuses on a lack of adequate detail, ineffability implies a profound, often sacred, resistance to language itself. It is the scent of petrichor that evaporates from memory the instant you name it, the precise warmth of a loved one’s skin that no metaphor can hold, and the silence that follows a piece of music which was itself the explanation—the beautiful, terrible proof that our finest instrument is a blunt tool against the perimeter of the unsayable.