The battle against the Giant Ant Queen, and the giant ants that it could produce through its special trait, was a long and arduous one.
The Giant Ant Queen could produce giant ants every few minutes and each of them would grow at an unbelievable rate, until their power is just as high as that of the Giant Ant Queen that produced them.
However while doing so, she was preoccupied and couldn't fight and after doing so she was very weak, as producing Giant Ants through her special trait seemed to be very draining.
Adam observed all of that and could see her weaknesses, but despite that, he still wasn't able to get to her and she was guarded by multiple giant ants that stayed with her and protected her with their lives.
Meanwhile, Adam also had other giant ants chasing and attacking him, while the Giant Ant Queen was producing more giant ants.