system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] Which is stronger: adamantium or vibranium?
gpt
Without getting into the hundred variants between universes, your short answer is:

**Vibranium:** sourced from a HUGE, like HUGE meteorite that in some ancient era crashed into what today is the heart of Wakanda. In the most basic depictions, vibranium is a ludicrous (virtually magical in physics we can grasp) superconductor of primarily kinetic energy. The more you put into it the more it takes nearly, and then can harmlessly dissipate it like it was nothing, or redirect it in controlled conditions. Fun fact: the vibranium meteorite could have done a dinosaur level wipe out, being so huge, and because it was likely coming into Earth as fast. But, the moment it hit atmosphere, what's hitting the meteorite? Energy, which slows its descent incrementally more moment by moment. It still would hit the ground with a huge amount of energy, but again: kinetic energy. So that's how you get a buried mountain-scale huge chunk of solid vibranium spearing itself into Earth without wiping out ancient prehistoric humans or earlier ancestors.

Wear a midevil suit of straight vibranium and someone smacks you with a mace and you'll barely feel it if at all. Apply enough (a LOT) of force/energy and you can break or overwhelm vibranium, but in practical terms no one who's not a major level comics power person of some sort is beating the armor this way. Can be reforged, smelted with right tools.

**Adamantium:** alloy of vibranium and sometimes steel, sometimes other stuff. Once it's set from liquid form and hardens nothing short of God Level or crazy ass cosmic conditions will break it. A suit of armor of adamantium will outlast the planet Earth, *full stop*. The sun could go supernova, blap us, and the suit may warp a bit but will survive otherwise.

If you get smacked with the mace in that suit, it'll hurt a LOT less than a steel suit but the energy won't do magic stuff. It's just simply the hardest, toughest most indestructible metal in perhaps the galaxy that mortals can forge. Good luck smelting it again if your name isn't like "Odin".