Have trigger detect objects but not be detected itself?

I have certain situations in my game where I want a trigger to be able to detect other objects, but I don't want other triggers or colliders to be able to detect them. Is there any way to do this?

Enabling/disabling collision between layers doesn't seem to work because it has to be two way.

 

You could make a reference to the collider(s) you want to ignore and then check in your collision/trigger callback, disregarding appropriately if they match.

 

That's how I been doing it. Just seems like a lot of checking for every object that simply needs to ignore it. Wish there was an in house way of making one way triggers.