Tenacious

1. a. Holding stoutly to one’s opinion or purpose; obstinate; stubborn.
2. a. Holding fast, or inclined to hold fast; inclined to retain what is in possession; as, men tenacious of their just rights.
3. a. Apt to retain; retentive; as, a tenacious memory.
4. a. Having parts apt to adhere to each other; cohesive; tough; as, steel is a tenacious metal; tar is more tenacious than oil.
5. a. Apt to adhere to another substance; glutinous; viscous; sticking; adhesive.
6. a. Niggardly; closefisted; miserly.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.