Hi there! So, a "pariah state" is a type of country that other countries don't want to be friends with. It's like when you have a friend who always behaves badly and nobody in your class wants to play with them. That friend becomes a "pariah" among your classmates.
Likewise, countries that are considered "pariah states" typically have done bad things that other nations don't want to be associated with. This could mean things like breaking laws, committing human rights abuses, supporting terrorism, or being aggressive towards other countries.
Because of their bad behavior, other countries may choose to avoid them, not trade with them, or even impose sanctions (which are like punishments) on them. This can make it hard for the pariah state to make friends with other countries or to do important things like importing food or medicine.
It's important to note that not everyone agrees on which countries are "pariahs" or why. Some may argue that certain countries are treated unfairly or that the label is subjective. But overall, a pariah state is a country that has been widely shunned by others because of its bad behavior on the world stage.