The phrase "they are unchangeable" is grammatically correct and can be used in written English.
It is typically used to describe something that cannot be altered or modified. Example: The laws of physics are unchangeable, no matter how much we may try to manipulate them.
Other than changing place, they are unchangeable, ungenerated and indestructible.
(OPD 6: 249) Desgabets's voluntarism, then, is a qualified one, for though the eternal truths depend upon God for their existence as their primary cause, they are no less indefectible, that is, they are unchangeable in their substantial being.
They were unchangeable and possessed a minimum of properties, shape, size and a degree of motion or rest together with the impenetrability of their component matter.
But there are unchangeable facts about Vaughn.
Unhealthy perfectionism is associated with a fixed mindset (the belief that your basic abilities are unchangeable).
There's nothing about the color assignations which are unchangeable, of course.
"I'm just realistic," said Arrivabene. "Nobody has the magic to change things when things are unchangeable.
Fear is at the heart of the problem: I think the fear that social and cultural norms are unchangeable is the beginning of the problem.
In the SSPP a Liner Service Provider (LSP) only revises one of its many operational strings, and it is assumed that the other strings are unchangeable.
The atomists held that, like Being, as conceived by Parmenides, the atoms are unchangeable and contain no internal differentiation of a sort that would allow for division.
Each gene of the individual corresponds to a trace point and everyone has their own set of alleles that are unchangeable between them.
