gut feeling
US /ɡʌt ˈfiːlɪŋ/
UK /ɡʌt ˈfiːlɪŋ/

1.
pressentiment, intuition, instinct
an intuition or instinct; a strong belief or feeling about something that is not based on facts or reason
:
•
I had a gut feeling that something was wrong.
J'avais un pressentiment que quelque chose n'allait pas.
•
Trust your gut feeling when making important decisions.
Fais confiance à ton instinct lorsque tu prends des décisions importantes.