holding fast, or inclined to hold fast; inclined to retain what is in possession; as, men tenacious of their just rights.-apt to retain; retentive; as, a tenacious memory.-having parts apt to adhere to each other; cohesive; tough; as, steel is a tenacious metal; tar is more tenacious than oil.-apt to adhere to another substance; glutinous; viscous; sticking; adhesive.-niggardly; closefisted; miserly.-holding stoutly to one's opinion or purpose; obstinate; stubborn.