We do not currently know of any antonyms for multidimensional array.
The noun multidimensional array is defined as:
A data structure consisting of a vector of vectors, in the case of a 2-dimensional array, or, in the case of an N-dimensional array, a vector of multidimensional arrays of degree N minus 1, thereby allowing the simulation of a N-dimensional grid of storage locations using an underlying memory architecture in which storage is addressed in a linear fashion.
