Balky a. : Apt to balk; as, a balky horse.

Example:
We have a Schlage deadbolt that is "Balky". Removal, cleaning, silicone have not worked. How to free up?

Taxonomy
Merriam-Webster Online Dictionary, balk, Dictionary, webster, Word Games, Webster Online Dictionary with audio pronunciations, Custom Search, glossary, english, language, ESL, Search, adjective, Inflected, mule, synonyms, ness, Unabridged Dictionary.

Defination from the web:
balky from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... refusing or likely to refuse to proceed, act, or function as directed or expected <a balky mule> <a balky engine> synonyms see contrary. — balk·i·ness noun ...