Let's take a quick glance at the wording of these two cards:
Based on the above, it would seem fairly obvious what would happen: a frozen creature would not attack multiple times if Adrenaline is cast on it. Case in point, the creature wouldn't attack at all. But it does, despite the Freeze. That's fine, I can live with that. I understand the principle (maybe the creature is so wrecked on Adrenaline he doesn't feel the cold - like that movie Crank).

Pictured: new card art for Adrenaline.
However, I still feel that something needs to be changed here, even if it's just the wording. I hate to be a nitpick, but something like this could go a long way to detracting from the allure of the game, from a newbie's point of view. I can see the following situation all too easily:
"If this isn't a bug, why does Freeze state specifically that creatures do not attack? If a creature with Adrenaline gets more attacks, wouldn't the Freeze still take precedence? Your cards make no sense."
I hope this whole thing hasn't been settled somewhere else. I hate to revive a dead topic for no reason.