《Buddhism》salvation (from suffering based on Buddha's teachings)
「救済」 has another reading with different meanings.
relief; aid; help; rescue
この話はどうも胡散くさい気がする。
This story somehow smells fishy.
面倒くさいことは後回しにしがちだ。
I tend to put off troublesome things.
古くさい考え方は時代に合わせて捨てるべきだ。
You should discard old-fashioned thinking.