One is simple disbelief or unbelief a kind of rejection of ruling opinion simply because you don't like it.

其一为，就只是不相信或是无信仰,即拒绝统治主张,理由仅是你不喜欢它。

耶鲁公开课 - 政治哲学导论课程节选

So, for example suppose now, just to make life a little bit more interesting, suppose that the voters were actually two rows and just allow me the suspension of disbelief that these rows have the same number of people in them, I know they don't really.

例如,假设现在,为了更有趣点,假设选民是两排人,且允许我认为,这两排人数相同,我知道他们实际上是不同的

耶鲁公开课 - 博弈论课程节选

He excoriated Clinton and expressed disbelief that she hadn't read the cables about security concerns.

NPR: Feisty Clinton: US Strengthening Embassy Security

But even then, after a moment of pure joy combined with disbelief, Leoni couldn't convince himself that an upset was brewing.

WSJ: Eight Seconds of Soccer Glory

Mansel Thomas, chair of the South East Pembrokeshire Community Health Network, said the protest was "an expression of sheer disbelief - we just can't understand the reasoning".

BBC: Tenby hospital minor injuries unit closure protest