Michiko Kakutani

If a novelist had concocted a villain like Trump - a larger-than-life, over-the-top avatar of narcissism, mendacity, ignorance, prejudice, boorishness, demagoguery, and tyrannical impulses, she or he would likely be accused of extreme contrivance and implausibility.

American Critic

John Updike

For many years, I read mystery novels for relaxation. But my tastes were too narrow - and, having read all of Agatha Christie and John Dickson Carr, I discovered that the implausibility and the thinness of the people distracted me unduly from the plot.

American Novelist

Use 'implausibility' to express doubt about a story, excuse, or event being true.

Context Usage

'Implausibility' subtly shows that something seems false without directly calling it a lie.

Subtle Doubt

Prefacing 'implausibility' with words like 'incredible' increases the level of disbelief.