sticking (in one place, position, etc.); settling; fixing; adherence
becoming established (of a custom, system, etc.); taking hold; taking root
《photography》fixation; fixing
新しい制度がようやく社会に定着した。
The new system has finally taken root in society.
習慣として定着するまでに時間がかかった。
It took time to become established as a habit.
移住先で文化の違いに戸惑いながらも定着していった。
Despite being disoriented by cultural differences, I gradually settled in at my new home.