Definition of "extravagancy" [ex•trav•a•gan•cy]

• Extravagance. (noun)
• Something extravagant. (noun)

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.

• "What you show is complete extravagancy and uncessary use of valuable materials."
• "But design styles do tend to filter down from those rich enough for an “complete extravagancy and uncessary use of valuable materials” – because they hire architects who follow eachothers work."
• "In a good poem, whether it be epic or dramatic, as also in sonnets, epigrams, and other pieces, both judgement and fancy are required: but the fancy must be more eminent; because they please for the extravagancy, but ought not to displease by indiscretion."