Holding fast, or inclined to hold fast; inclined to retain what is in possession; as, men tenacious of their just rights.
- Holding or tending to hold persistently to something, such as a point of view.
- Holding together firmly; cohesive: a tenacious material.
- Clinging to another object or surface; adhesive: tenacious lint.
- Tending to retain; retentive: a tenacious memory.