General:
* un- (not) - unfair
* im- (not) - imfair (less common, but still possible)
* in- (not) - infair (less common, but still possible)
* pre- (before) - prefair (less common, but used in specific contexts like pre-fair preparations)
* re- (again) - refair (less common, but used in specific contexts like re-fair the issue)
More specific:
* super- (above) - superfair (used to imply something is exceptionally fair)
* sub- (below) - subfair (used to imply something is less than fair)
* over- (too much) - overfair (used to imply something is excessively fair, potentially to the point of being unfair)
* mid- (middle) - midfair (used to imply something is fair but not outstanding)
* mini- (small) - minfair (used to imply a small or limited fair)
Note: While some of these combinations are less common, they are still grammatically correct and can be used in specific contexts. The meaning of the combination will depend on the context.