incommensurable

(noun, adjective)

adjective

1. impossible to measure or compare in value or size or excellence

Similar word(s): incomparable, uncomparable

2. not having a common factor

Similar word(s): incommensurate

Sentences with incommensurable as an adjective:

- The side and diagonal of a square are incommensurable with each other; the diameter and circumference of a circle are incommensurable.

noun

1. An incommensurable value or quantity; an irrational number.