Simple Examples:
* My grandfather is a pessimistic person, always expecting the worst.
* Despite the positive news, she remained pessimistic about the future.
* The pessimistic outlook of the report discouraged investors.
More Complex Examples:
* Pessimistic about the outcome of the negotiations, the diplomat prepared for a worst-case scenario.
* Her pessimistic view of the world was often attributed to her difficult childhood.
* The company's pessimistic financial projections led to a decline in stock prices.
Figurative Examples:
* The dark clouds gathering on the horizon cast a pessimistic shadow over the picnic.
* The silence after his speech hung in the air, a pessimistic omen for his political future.
You can use "pessimistic" to describe people, opinions, predictions, or even feelings and atmospheres. Remember to choose the sentence structure and context that best fits your meaning!