by force of habit
US /baɪ fɔrs əv ˈhæbɪt/
UK /baɪ fɔrs əv ˈhæbɪt/

1.
karena kebiasaan, secara otomatis
because of a routine or custom, without conscious thought
:
•
He still checks his old email account every morning by force of habit.
Dia masih memeriksa akun email lamanya setiap pagi karena kebiasaan.
•
She automatically reached for her phone by force of habit, even though she knew it was dead.
Dia secara otomatis meraih ponselnya karena kebiasaan, meskipun dia tahu baterainya habis.