one-sided

adjectives

not reversible or capable of having either side out
nonreversible, one-sided
involving only one part or side
"unilateral paralysis"; "a unilateral decision"
one-sided, unilateral
favoring one person or side over another
"a biased account of the trial"; "a decision that was partial to the defendant"
biased, colored, coloured, one-sided, slanted