Definition of "dull" []

• Intellectually weak or obtuse; stupid. (adjective)
• Lacking responsiveness or alertness; insensitive. (adjective)
• Dispirited; depressed. (adjective)
• Not brisk or rapid; sluggish: Business is dull. (adjective)
• Not having a sharp edge or point; blunt: a dull knife. (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.

• "It has been called "the dull product of a scoffer's pen"; it is indeed the "product of a scoffer's pen"; but after reading the Excursion, few people will think it _dull_."
• ""It is so what you call dull, Sir John," she protested in her coquettish way."
• ""I don't know what you call dull," replied the old man, as if half offended at the suggestion."