This is the 17110th most frequent Russian word.
стабильная
Stable.
The word 'стабильная' is used here in a feminine singular adjectival form to describe 'ситуация', which speaks about a situation being steady or consistent.
Ситуация в регионе остается стабильной.
The situation in the region remains stable.
In this usage, 'стабильная' in the instrumental case is used to describe the changes in a professional setting, indicating a secure or steady position.
Её положение в компании стало достаточно стабильным.
Her position in the company has become quite stable.
Here, 'стабильная' describes motivation (мотивация), illustrating consistent and reliable internal drive.