For example:
* Subtle - delicate or faint
* Subliminal - below the threshold of conscious perception
* Substandard - below the required standard
However, "fine" is not always a prefix. It can also be a root word itself, as in "refine" and "define".
For example:
* Subtle - delicate or faint
* Subliminal - below the threshold of conscious perception
* Substandard - below the required standard
However, "fine" is not always a prefix. It can also be a root word itself, as in "refine" and "define".