'Grievous' in the Bible

So I hated life, because the work that is worked under the sun was grievous to me; for all is vanity and a chasing after wind.

There is a grievous evil which I have seen under the sun: wealth kept by its owner to his harm.

This also is a grievous evil, that in all points as he came, so shall he go. And what profit does he have who labors for the wind?