Do our choices define us, or are we defined by the choices we don't make?

A mixture of both, after all they it's also a decision to not act on something

The outcome of any choice do Not depend merely on the made choice. There are several variables that are responsible in reaching the end.

The individual remains the same - The Individual.

In the words of Rush:

If you choose not to decide, you still have made a choice.

If I had to choose, it'd be the former.

Over 40 years ago, I was offered a job as an airline hostess. I didn't take it.
But the life I lived could not have been predicted from that choice.
The path not taken is one of infinite posssibilities.
Only the paths actually taken define our histories.

And yet, we need not be defined by any past at all.
We simply are - responding however we do in this moment now.

The choices we make may have an impact in our lives but doesn’t define us. Specially at those moments where we really don’t choose our choices.

You always make a choice so it's purely down to the good or bad choices that you make in life that define you.
乂º◡º乂

There is more to you than your choices. However, people will judge and label you by them.

both
and the reason for each tell you everything about us

I think we are defined by everything we do. And that includes gossiping about others.

“It's not who I am underneath, but what I do that defines me.” – Batman 🦇

Our choices lead to our experiences.
Other people's choices lead to our experiences

What a great question! I really have to think about it before responding.

Explain choices you don't make. An example?

What does it say about a woman that rejects my marriage proposal?

Both and then some.

Our choices define us

yes. those.

Both, I'd say

Both