Synonyms for Fair (same or very similar meaning)
WordNet sense 1 (marked by no especial liking or dislike or preference for one thing over another):
indifferent
WordNet sense 2 (characterized by a lack of partiality):
unbiased
WordNet sense 3 (unaffected by strong emotion or prejudice):
dispassionate
WordNet sense 4 (unaffected by self-interest):
disinterested
WordNet sense 5 (showing lack of favoritism):
impartial
WordNet sense 6 (lacking exceptional quality or ability):
average, mediocre, middling
WordNet sense 7 (not exceptional in any way especially in quality or ability or size or degree):
ordinary
WordNet sense 8 (not excessive or extreme):
reasonable, fairish
WordNet sense 9 (being within reasonable or average limits; not excessive or extreme):
moderate, moderate
WordNet sense 10 (associated with women and not with men):
feminine
WordNet sense 11 ((of handwriting, print, etc.) able to be read):
legible
WordNet sense 12 (a sale of miscellany; often for charity):
bazaar
WordNet sense 13 (exhibiting or calling for sportsmanship or fair play):
clean, sporting, sportsmanlike, sporty
WordNet sense 14 (free from favoritism or self-interest or bias or deception; or conforming with established standards or rules):
just
WordNet sense 15 (a traveling show; having sideshows and rides and games of skill etc.):
carnival, funfair
WordNet sense 16 (free from clouds or mist or haze):
clear
WordNet sense 17 (in conformity with the rules or laws and without fraud or cheating):
fairly
WordNet sense 18 (being or having light colored skin and hair and usually blue or grey eyes):
blond, blonde, light-haired
WordNet sense 19 (very pleasing to the eye):
bonny, comely, sightly, bonnie
WordNet sense 20 (delighting the senses or exciting intellectual or emotional admiration):
beautiful
WordNet sense 21 (without favoring one party, in a fair evenhanded manner):
evenhandedly
From the ODE community, based on WordNet
add/edit