at the back of your mind
US /æt ðə bæk əv jʊər maɪnd/
UK /æt ðə bæk əv jʊər maɪnd/

1.
di benak, di alam bawah sadar
a thought or worry that you have but that you are not thinking about consciously
:
•
The thought of the upcoming exam was always at the back of her mind.
Pikiran tentang ujian yang akan datang selalu ada di benaknya.
•
He had a nagging feeling at the back of his mind that he had forgotten something important.
Dia memiliki perasaan mengganggu di benaknya bahwa dia telah melupakan sesuatu yang penting.