YOU
The prefix "un-" could be added to the word happy to create the word "unhappy," which means not happy.
very happy
There is no prefix but there is a suffix -ly added to the word passive.Prefixes are added to the beginning of a word eg happy/unhappy prefix is un-
The prefix eu- means good, well, normal, happy, pleasing. Also, pleasant and improvement. Derived from the Greek word meaning one's lot or fortune.
The prefix for inadequate is in-. The prefix in- means not.
The prefix "con-" means "with."
The prefix is ap-. This prefix means to or toward.
Well unhappy itself is not a prefix but, unhappy has a prefix and that is "un" because, the word makes sense with out un in it and un turns happy into not happy so this word has a prefix you dumbhole.
The prefix intra- means inside or within.
The prefix is in. The prefix in- means not.
The prefix is in-. This prefix means not.
The prefix is in-. This prefix means not.