There is no such thing as mildly illegal. Either you commit a crime or you don't.
When you add "ous" to "mischief," it creates the adjective "mischievous," which describes someone or something causing or showing a fondness for causing trouble in a playful or mildly malicious way.
Mildly prominent typically means that something is slightly noticeable or noticeably present, but not to an extreme degree. It suggests that there is a modest level of prominence or importance.
mildly agree
It would be mildly eccentric to eat nachos with utensils rather than with your fingers, but remember, eccentricity is not illegal. You can do it if you want to.
"Reflected mildly" could refer to a situation where something is gently mirrored or imitated to a slight degree.
cancer prostate
"Freaking" implies a stronger version of "mildly," so "freaking mild" would mean something is very mildly experienced or felt. It could be used to emphasize that an experience or feeling is only slightly intense or noticeable.
wildly
died
Approximately 85% of the mentally retarded population is in the mildly retarded category.
Non-addictive. Some people claim that it is, however those people don't understand the difference between wanting something and needing something.
Mildly