tractable

(adjective): (of people) Capable of being easily led, taught, or managed.
(adjective): (of a problem) Easy to deal with or manage
(adjective): Capable of being shaped; malleable.
(adjective): Capable of being handled or touched.
(adjective): Sufficiently operationalizable or useful to allow a mathematical calculation to proceed toward a solution.
(adjective): Of a decision problem, algorithmically solvable fast enough to be practically relevant, typically in polynomial time.