10 Characters Who Have Defeated Thanos
4. Adam Warlock
Adam Warlock and Thanos have a history that goes back decades. In the original Infinity Gauntlet storyline, Warlock was the only force able to truly oppose Thanos once he had assembled all of the infinity stones.
In Marvel Two-In-One #2, Thanos appears to be all-powerful after assembling all six stones in the gauntlet. He even defeated Adam Warlock and imprisoned him within the Soul Stone. However, during battle, Spider-Man is able to pull the Soul Stone loose and free Warlock's soul from it.
He uses his remaining power to turn Thanos to stone. The Avengers celebrated their victory and gave Adam Warlock's body a fittingly heroic funeral, as his soul returned to the alternate plan within the Soul Stone and found peace. While Thanos was doomed to an eternity in stone.
Of course, eternity didn't last forever. But it did last a surprisingly long time. Thanos would not be seen again for another twenty-three years(!) until he returned more powerful than ever, just-in-time for his Infinity Gauntlet arc.