unpleasant experience

Consuming addictive substances often involves an unpleasant experience, like using a needle, ingesting a bitter substance or inhaling smoke.

Watching “Beetlejuice Beetlejuice” is not an unpleasant experience, as it maintains a familiar irreverent tone and a gorgeously morbid and imaginative look.

But there’s such a woo-woo warmth to the endeavor that it’s never an entirely unpleasant experience.

“I never think about that,” Obadia said, but then she recalled an unpleasant experience.

In contextual memory tests, rats with normal memory freeze when they re-enter a room in which they had an unpleasant experience.