1. 荒废的：obsolescence 废弃 | obsolescent 荒废的 | obsolete 荒废的

2. 废退的：obsolescence 陈腐化 | obsolescent 废退的 | obsolete 不发育的

3. obsolescent在线翻译

3. 过气：新晋歌星rising star | 过气obsolescent | 雷颂德Mark Lui Chung-tak

4. 逐渐要废弃的：obsolescencefree 长时适用 | obsolescent 逐渐要废弃的 | obsolescenthousing 过时住房

1. 过时的；废弃的;淘汰的
    If something is obsolescent, it is no longer needed because something better has been invented.

    e.g. ...outmoded, obsolescent equipment.
           陈旧老化的设备

1. becoming obsolete