I'm looking for the way to express the opposite of 儿化 in Chinese.
Let's assume 老头儿（lǎotóur）is the standard and it's rarely ever without an 儿. 老头 in this instance would be an exception. I want to express this by saying it's the opposite of 儿化.
规范 seems to express this in a few ways:
Which is okay.
I'd be happier with something like:
I'm not sure that any such terminology exists.