dimensionless

noun

1. any measurable extent, as length, width, depth, etc.
2. measurements in length and width, and often depth
3. 1. extent, size, or degree
   2. scope or importance
4. the nature and relationship of the units entering into some physical quantity: the dimension for speed is length divided by time
5. Obsolete bodily form
6. Math. a number, usually an integer, representing the geometric dimensions of some physical or abstract system

adjective

transitive verb