Definition of "unceremonious" []

• Without the due formalities; abrupt: an unceremonious departure. (adjective)
• Not ceremonious; informal: made an unceremonious presentation. (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.

• "A small man, with an uncommonly sour and discontented face, emerged from the house, and returned to this call the unceremonious acknowledgment of ‘Now then!’"
• "A small man, with an uncommonly sour and discontented face, emerged from the house, and returned to this call the unceremonious acknowledgment of 'Now then!'"
• "I went very early to the next weekly meeting, and was entertaining a small circle very successfully with a minute representation of my lord mayor's show, when the colonel entered careless and gay, sat down with a kind of unceremonious civility, and without appearing to intend any interruption, drew my audience away to the other part of the room, to which I had not the courage to follow them."