Lacking dimensions. / (sciences) Of a physical constant: lacking units.

the quality, of depth or thickness, that differentiates a solid object from a two-dimensional image of it

(mathematics) (of a vector space) having a basis consisting of a finite number of elements.

The state or characteristic of possessing dimensions. / (chiefly mathematics and computing) The number of dimensions something has.

(geometry) Having zero dimensions; having no extent in any direction.

Having length, but no width, height or depth. / (figuratively) Lacking depth or believability; flat. / (figuratively) Lacking personal depth and substance; conceited, vain, shallow, superficial.

(mathematics) A vector space having n vectors as its basis

Possessing eleven geometric dimensions.

simple past tense and past participle of dimension

Possessing dimension, non-dimensionless, dimensionful.