Another word for no regrets is impenitent.
Impenitent means to not have any regrets or feel any shame about one's attitude or actions.
Examples of impenitent in a sentence :
-The bully was impenitent when he pushed the little boy off the swings.
-Julie's impenitent attitude after reading Sara's diary in front of her whole class, led to detention from the Headmistress.
The answer is Every action has an equal and opposite reaction
<span>I would say A
though i got a little confused at first but i hope i helped
</span>
Answer:
A- skillfully
I very sure but I think I'm right