Ill-tempered and quarrelsome; disagreeable: disliked her cantankerous landlord.
Difficult to handle: "had to use liquid helium, which is supercold, costly and cantankerous” ( Boston Globe).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.