Another word for foolishly

"Don't talk foolishly," Dean said, trying to keep his voice light.

After the guests had drunk quite a little of it, they began to talk foolishly and sing loudly; and some of them went to sleep.

Cade only wanted one thing - and she had foolishly submitted.

At length Constantine had her arrested, but foolishly pardoned her shortly afterwards.

If we thought that was the end of the glitches, we were foolishly naïve indeed.