Inquantifiable

Part of speech: adjective

Definitions

1. Impossible to measure, quantify, or express in numerical or measurable terms
2. Unable to be determined or calculated as a specific amount or degree
3. Defying measurement or expression in quantitative form due to its nature or complexity

Etymology: The word is built from three parts, each borrowed from Latin. The core is "quantus," meaning "how much," which gave English "quantity" and "quantum." The suffix "-fy" comes from Latin "-ficare," from "facere," "to make" or "to do," so "quantify" means roughly "to make into an amount." "Quantifiable" adds the English "-able," meaning "capable of being," and "in-" is the Latin negative prefix, as in "inadequate" or "invisible." Together, the word means "not capable of being measured or expressed as a quantity." It is a regular formation from existing parts, and the exact date of its first recorded use is uncertain, though it is a relatively modern English coinage built on older roots.