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

1.
atas dasar kebiasaan, secara automatik
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 akaun e-mel lamanya setiap pagi atas dasar kebiasaan.
•
She automatically reached for her phone by force of habit, even though she knew it was dead.
Dia secara automatik mencapai telefonnya atas dasar kebiasaan, walaupun dia tahu ia sudah mati.