Antonyms of adj fair-and-square

1 sense of fair-and-square

Sense 1
fair-and-square -- (just and honest)

INDIRECT (VIA fair) -> unfair, unjust -- (not fair; marked by injustice or partiality or deception; "used unfair methods"; "it was an unfair trial"; "took an unfair advantage")

Similarity of adj fair-and-square

1 sense of fair-and-square

Sense 1
fair-and-square -- (just and honest)
       => fair (vs. unfair), just -- (free from favoritism or self-interest or bias or deception; conforming with established standards or rules; "a fair referee"; "fair deal"; "on a fair footing"; "a fair fight"; "by fair means or foul")