Threadbare

Adjective

1. Of cloth, clothing, furnishings, etc.: frayed and worn to an extent that the nap is damaged and the warp and weft threads show; shabby, worn-out.
2. In poor condition; damaged, shabby; also, poorly equipped or provided for, inadequate, meagre, scanty.

   ":"

3. In poor condition; damaged, shabby; also, poorly equipped or provided for, inadequate, meagre, scanty.

   ":"

4. Of an argument, excuse, etc.: used so often that it is no longer effective or interesting; banal, clichéd, trite.
5. An argument or assertion with little in the way of substance or supporting evidence.

   ":"