What word defines rejecting a rejection?

I’m not aware of such a word. Can you write a sentence in which you would use it? Just put a blank or a placeholder in brackets in the position where you think the word belongs.

Can’t think of anything. All I can do is change rejection to negation. What it called when one negates a negation?

If you don’t have a use for the word, it seems like it’s going to be ok that there isn’t one.

Antidisestablishmentarianism?

That is, the ideology that opposes the disestablishment of an institution.

Sounds like a double negative.
Thus, acceptance?

Wouldn’t it simply be someone who is a believer or a person of religious faith? A religious person?

@Seek_Kolinahr GREAT answer. Iwould have said the same.

counter-rejection but it seems silly

appeal

contradict or disregard

Defiance? Bickering?

Being extremely stubborn? Intolerance?

Rebuff?

In philosophy, we call this sublation. “Sublation” is actually a single facet/partial translation of a German word (used in a philosophical sense) that does not have an English equivalent: Aufheben.

Hope? Belief? Faith?

Persevere?

If you were to stand up to someone who had negative ideals or beliefs that they were subjecting you or other people to you would be persevering despite the negativity.

You would be the anti bully? Understated vigilante?
Following your own path?
Independent?
Not easily swayed?
Indefatigible?
Argumentative?
Willing to stand up for your beliefs?

That’s about all I get?

Persistence? Persisting?

Despite many people of His time rejecting His ideas and thoughts, Jesus persisted in them.

Steadfastness, works on the general principle at least.

How about existentialist? People think of it as being nihilistic but its really about creating your own meaning without inherent irrefutable truths so I may be wrong but I don’t think of it as nihilistic. Its more like a blank slate.
Another word that came to mind was steadfast.

I think we’re all floundering because it isn’t really clear what the OP means by rejection of a rejection. Does s/he mean a counter rejection or an affirmation?

NOPE

I agree with @janbb. There are many ways to reject a rejection. Take @avaeve‘s example of nihilism: one might reject it on the grounds of being a realist who simply takes the nihilist to be mistaken about what values exist. The traditional theist and the classical moral philosopher are both people who reject nihilism in this way.

As @Earthgirl mentions, however, one might reject nihilism in favor of existentialism. The existentialist takes a more direct interest in nihilism. Rather than simply embracing what the nihilist rejects, the existentialist has a more nuanced view that accepts parts of the nihilist’s arguments while denying the nihilist’s conclusions.

It seems to me that any case of rejecting a rejection will have analogous possibilities: some will deny that the original rejection was at all warranted, others will deny that the original rejection is the proper response to whatever led to it. That no single word exists for two such different stances strikes me as not all that surprising.

unflinching constancy