controllable
adj.something that you can manage or change easily. You use this to describe a situation or a person that is not difficult to handle.
adj.capable of being managed, directed, or influenced by an external force or individual. Often used to describe systems, variables, or behaviors that remain within a predictable range.
“The new software makes the system much more controllable.”
“The manager found the new team to be very controllable, as they followed instructions without question.”
“In a complex chemical reaction, maintaining a controllable environment is essential to prevent the process from becoming unstable or dangerous.”
“This is helpful because effort is controllable, and we know practice is important for developing expertise.”
From control + -able.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.