形容词

1. (衣服、地毯等)破旧的，磨薄的，陈旧的
Threadbare clothes, carpets, and other pieces of cloth look old, dull, and very thin, because they have been worn or used too much.

2. (活动、想法、论点)无力的，不充分的，陈旧乏味的
If you describe an activity, an idea, or an argument as threadbare, you mean that it is very weak, or inadequate, or old and no longer interesting.

1. repeated too often
overfamiliar through overuse

e.g. bromidic sermons
his remarks were trite and commonplace
hackneyed phrases
a stock answer
repeating threadbare jokes
parroting some timeworn axiom
the trite metaphor `hard as nails'

Synonym: banalcommonplacehackneyedold-hatshopwornstock(a)timeworntiredtritewell-worn

2. having the nap worn away so that the threads show through

e.g. threadbare rugs