What's the adjective for variadics? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs variate, variegate, vary, varietize and varify which may be used as adjectives within certain contexts.
“The inputs to a variadic network are an arbitrary-length list of n-tuples of real numbers, where n is fixed, and the function computed by the network is unaffected by permutation of the inputs.”
“This paper describes improvements in the training algorithm for the variadic perceptron, based on a constructive cascade topology, and performance of the improved networks on geometric problems inspired by vector graphics.”
“In this paper we consider two properties of variadic functions, namely associativity and preassociativity, that are pertaining to several data and language processing tasks.”