against your better judgment
US /əˈɡɛnst yʊər ˈbɛtər ˈdʒʌdʒmənt/
UK /əˈɡɛnst yʊər ˈbɛtər ˈdʒʌdʒmənt/

1.
contra su mejor juicio, a pesar de su buen juicio
despite knowing or feeling that something is probably wrong or unwise
:
•
I went against my better judgment and lent him the money.
Fui contra mi mejor juicio y le presté el dinero.
•
She knew it was a bad idea, but she did it against her better judgment.
Sabía que era una mala idea, pero lo hizo contra su mejor juicio.