1.

1. 无污点的：unstable 不牢固的 | unstained 无污点的 | unstatesmanlike 无政治家风度的

2. 没有沾污的：unstacker 拆垛机 | unstained 没有沾污的 | unstained 无污垢的

3. 无污垢的：unstained 没有沾污的 | unstained 无污垢的 | unstamped 未盖戳的

4. unstained

4. 没有沾污的/无污垢的/无污点的：unstacker /拆垛机/ | unstained /没有沾污的/无污垢的/无污点的/ | unstainted /清白/

1. (of reputation) free from blemishes

    e.g. his unsullied name
           an untarnished reputation

    Synonym: stainlessunsullieduntainteduntarnished

2. not stained

    e.g. An apron keeps his clothing unstained

3. without soil or spot or stain

    Synonym: unsoiledunspotted

4. not having a coating of stain or varnish

    Synonym: unvarnished