off balance

off balance idiom
  1. Out of equilibrium, unsteady, as in When learning how to ride a two-wheeler, it's easy to get off balance and fall, or She stood up and threw the canoe off balance. [Mid-1900s]
  2. Surprised, unprepared, as in The teacher gives unannounced tests to keep the class off balance. [Second half of 1900s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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