Noun meaning "something that stays the same"

Question

What is a word for "something that stays the same"?
Like an antonym for "a change".
Similarity? Continuity? Sounds off.
Ex:

While ABC was a change, XYZ was a __.

This quarter, while ABC changed, XYZ was a __.

(To mean that XYZ stayed the same)

cigien · Accepted Answer

You can use constant

something invariable or unchanging

So you get

While ABC was a change, XYZ was a constant.

Pete · Answer

"As usual" or "The same as ever"

2 Answers