Source : WordNet®

unstained
     adj 1: not stained; "An apron keeps his clothing unstained" [ant: {stained}]
     2: not having a coating of stain or varnish [syn: {unvarnished}]
     3: without soil or spot or stain [syn: {unsoiled}, {unspotted}]
     4: of reputation; "his unsullied name"; "an untarnished
        reputation" [syn: {stainless}, {unsullied}, {untainted}, {untarnished}]