Transcendental
TRANSCENDENT'AL, adjective Supereminent; surpassing others; as transcendental being or qualities.
Transcendental quantities, among geometricians, are indeterminate ones, or such as cannot be expressed or fixed to any constant equation.
Transcendental curve, is such as cannot be defined by any algebraic equation, or of which, when it is expressed by an equation, one of the terms is a variable quantity.