na-adjective
Describes a state or condition that is stable and unlikely to change suddenly. Often used in economic, political, or technical contexts.
この地域の経済は安定的に成長している。
The economy of this region is growing steadily.
安定的
We need to ensure a stable supply.
Formed from 安定 (stability) + 的 (-like, -ish), a common pattern for creating adjectival nouns from nouns.