immutable

The answer of the son came with an immutable finality, the sublime faith of love.

How could you believe him constant and immutable, after what happened to me?

But those who see the absolute and eternal and immutable may be said to know, and not to have opinion only?

That is immutable; you may trust your soul to that; but you must be certain first of your quantities.

These laws are as immutable as Newton's laws, and come, like his, from beyond our ken.

Past, present, and future, must be governed by immutable laws.

Such are my reasons for believing that specific forms are not immutable.

It is a secret that is known only to God, and His ways are immutable.

"Then it has not taken the immutable laws of Nature into consideration," said Wauna.

Immutable, permanent possessions were the gifts of God to men.