Category:Nondeterministic

Languages with significant operations (such as execution order) that are predominantly nondeterministic; the same answer cannot always be expected in the same circumstance.

Note that this is not necessarily the same as "strictly random" (for that, see the subcategory Category:Probabilistic); it's more like "there are no guarantees".

It's also unfortunate that the term "nondeterministic" has a slightly different meaning in the world of automata and computability theory. Roughly speaking, a nondeterministic automaton is considered to do something (for example, recognize a string on its input) if there is any circumstance under which it might do that thing.