TENA'CIOUSNESS, noun The quality of holding fast; unwillingness to quit, resign or let go; as a man's tenaciousness of his rights or opinions. 2. Adhesiveness; stickiness; as the tenaciousness of clay or glue. 3. Retentiveness; as the tenaciousness of memory.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI