Pronunciation: (thred'bâr"),[key] —adj. 1. having the nap worn off so as to lay bare the threads of the warp and woof, as a fabric, garment, etc.
2. wearing threadbare clothes; shabby or poor: a threadbare old man. 3. meager, scanty, or poor: a threadbare emotional life. 4. hackneyed; trite; ineffectively stale: threadbare arguments.