hidebound

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Stubbornly prejudiced, narrow-minded, or inflexible.
• adjective Having abnormally dry, stiff skin that adheres closely to the underlying flesh. Used of domestic animals such as cattle.
• adjective Having the bark so contracted and unyielding as to hinder growth. Used of trees.

from The Century Dictionary.

• Bound tightly by the hide, as an animal, or by the bark, as a tree: said of a horse, etc., when, from emaciation or other cause, the hide on its back or ribs cannot be loosened or raised in folds with the fingers; of a tree or a root, when the bark is so close or unyielding as to impede its growth.
• Hence Obstinately set in opinion or purpose; narrow-minded; bigoted; stubborn; unyielding: as, a hidebound partizan.
• Shut tightly; closed fast; hence, closefisted; stingy.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Having the skin adhering so closely to the ribs and back as not to be easily loosened or raised; -- said of an animal.
• adjective (Hort.) Having the bark so close and constricting that it impedes the growth; -- said of trees.
• adjective Untractable; bigoted; obstinately and blindly or stupidly conservative.
• adjective obsolete Niggardly; penurious.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective of a book Bound with the hide of an animal.
• adjective of an animal Having the skin adhering so closely to the ribs and back as not to be easily loosened or raised.
• adjective of trees Having the bark so close and constricting that it impedes the growth.
• adjective Stubborn; narrow-minded.
• adjective Niggardly; penurious.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective stubbornly conservative and narrow-minded