pessimum (adjective)

1. The superhero's powers were severely limited and his abilities were pessimum whenever he was exposed to extreme temperatures.

2. In the love story, the couple's relationship reached its pessimum when they constantly disagreed on everything.

3. The dark, cramped and poorly ventilated room created a pessimum environment for productivity and creativity.

4. On the distant planet, the alien civilization had to adapt to the pessimum conditions of intense radiation and extreme weather.