enthusiastic.
It really doesn't have a positive connotation. Reckless usually implies that very poor judgment was used in making a decision that harmful to ones self and/or others. A word similar to reckless that's a bit more positive would be adventurous . . .
adventurous
The adventurous hero was frozen in his tracks. The adventurous hero was named Nimrod. Which of you wishes to be remembered as an adventurous hero? What will the adventurous hero do next? Wasn't that episode of the adventurous hero just thrilling?
Adventurous.
...connotation!
It is a neutral connotation.
It is a negative connotation.
uneasy is negative connotation
A general connotation for infinity is forever, but because connotation is dependent on the individual reader, the connotation varies.
Yes she is adventurous.
Adventurous is rash and enterprising.
Adventures