unalterable

The law of nature is unalterable; God Himself cannot alter it any more than He can alter a mathematical axiom.

I even see that the contrary would cost you more, for nature has gifted your heart with unalterable calmness.

An experience in the unalterable nature of the thing itself must be undergone.

My love for you is unalterable; our souls are linked by bonds that time cannot dissolve.

I am not one of those who think that a science, as such, has natural and unalterable boundaries.

His demeanour towards her, from childhood upwards, had been one of unalterable, uninterrupted fondness.

When these two talked without apparent heat it was with unalterable fixedness of purpose.

On her brother no effect was produced: calm, unalterable, looked he; as though his face had been turned to stone.

I was incoherent—wild, perhaps; but somehow I expressed my meaning—my unalterable decision.

Jonathan, on his side, repaid Alexander with unalterable loyalty.