Sigmund Freud was the apostle of disbelief. He was the one who made psychoanalysis a part of our culture, and in so doing he kicked out a flying buttress that had been essential for holding up our cathedral of faith. ↗
The infrastructure of the US is a long-term suspension of disbelief that such things won't be exploded deliberately by people who don't create anything. ↗
You have to suspend disbelief a little bit to buy into your situation and to the story and to how the character will react. You have to tweak your credibility a little bit, is basically what it comes down to. ↗
When he realized who he'd pulled over, the policeman shook his head in disbelief. He told me of all people I should know better. He gave me a real dressing down, but let me go. ↗