Definition of "highflying" [high•fly•ing]

• Rising to a great height. (adjective)
• Unusually extravagant, affected, or ambitious. (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.

• ""Well! I shall see big Davey, perhaps, but don't you think 'highflying' would suit me better, although I know little about it?""
• "John Chambers , the veteran chief executive of Cisco Systems Inc., confessed the once highflying technology company has lost its focus, lacks discipline and needs to overhaul its operations."
• "When Enron collapsed and the dotcom bust eliminated some highflying trading platforms, ICE saw its business boom."