No, aquamarine is not a prefix. A prefix is not a word in itself, and it is attached to the beginning of a word to change the meaning. For example, the prefix un- can be attached to the word remarkable to make the word unremarkable, which means not remarkable.
Only in unusual constructions, where it modifies a verb or adjective and means very or only:"We had to leave but fast.""The repair took but a minute.
hilarious amusing strange unusual intriguing odd
Another word for remarkable is outstanding. Selfish does not describe something that is remarkable, selfish describes someone who only thinks of their self.
re
amazing, unusual, awesome
the word unusual means something that is not ordinary.
Another word for remarkable is phenomenal.
Bizarre means strange, weird, or unusual in comparison to something else or a general norm.
the word unusual means something that is not ordinary.
The word odd means unusual.
remarkable
extraordinary remarkable
remarkable
it means it is special and noticeable
remarkable
distinguished.