He dressed foolishly to entertain the children.
Foolishly, he had decided that, because a home was the best investment, two homes were even better.
"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.
So you must be careful not to spend these foolishly.
To this period belong his exercises in Latin verse, in the loose taste of the day, foolishly published by him as Juvenilia in 1548.