Another word for unchanging

He had unchanging faith in selfgovernment.

In 1832 he published, jointly with Willer, one of the most famous papers in the history of chemistry, that on the oil of bitter almonds (benzaldehyde), wherein it was shown that the radicle benzoyl might be regarded as forming an unchanging constituent of a long series of compounds obtained from oil of bitter almonds, throughout which it behaved like an element.

In 1832 he published, jointly with Willer, one of the most famous papers in the history of chemistry, that on the oil of bitter almonds (benzaldehyde), wherein it was shown that the radicle benzoyl might be regarded as forming an unchanging constituent of a long series of compounds obtained from oil of bitter almonds, throughout which it behaved like an element.

1853), to a system of identification depending on the unchanging character of certain measurements of parts of the human frame.

Both interpretations, " He (who) is (always the same)," and " He (who) is (absolutely, the truly existent)," import into the name all that they profess to find in it; the one, the religious faith in God's unchanging fidelity to his people, the other, a philosophical conception of absolute being which is foreign both to the meaning of the Hebrew verb and to the force of the tense employed.