Willing to comply; submissive; willing to do what someone wants.
Compatible with or following guidelines, specifications, rules, or laws.
Capable of being easily led, taught, or managed.
Easy to deal with or manage
Capable of being shaped; malleable.
Sufficiently operationalizable or useful to allow a mathematical calculation to proceed toward a solution.
Algorithmically solvable fast enough to be practically relevant, typically in polynomial time.