threadbare
/ˈθredbeə(r)/adjective
1- (of cloth, clothing, or soft furnishings) becoming thin and tattered with age（衣物）穿旧的, 磨光露底的; （室内陈设品等）露底的, 露白的; 破旧的：
tatty rooms with threadbare carpets
铺着破旧地毯的旧房间。
1.1
- (of a person, building, or room) poor or shabby in appearance（人）衣衫褴褛的, 潦倒的; （建筑物, 房间）破败的。
1.2
- (of an argument, excuse, idea, etc.) used so often that it is no longer effective（论点、借口、主意等）陈腐的, 老掉牙的; 乏味的：
the song was a tissue of threadbare clichés.
那首歌整个就是一套陈词滥调。