stable and untroubled in a mental and/or emotional sense, especially in terms of being able to have healthy and normal interactions with people;
e.g. Many children take some time to become well-adjusted after joining a new school.
(adjective)
being of a suitable state for some desired appearance, fit, or result, typically involving some alterations or adjustments that have been made successfully;
e.g. The devices were well-adjusted to the environmental conditions so that they could collect accurate results.