Rough or surly in manner. See Synonyms at gruff.(adjective)
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.
Use "crusty" in a sentence
"Selig, crusty from the criticism that surrounds his decision, stuck with his position that there were no other choices."
"A fondue is a delicious way to while away a cold winter evening ... huddled around a pot of molten cheese, dipping in crusty bread and potato wedges."
"Admit it, it’s a pretty name—at least when it’s not modified by the word crusty."