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  • off-base
    off-base
    adjective
    located outside the perimeters of a military base.
  • off base
    off base
    Wrong, relying on a mistaken premise, as in His description of the accounting system was totally off base. This metaphoric term originated in baseball, where a runner who steps off a base can be put out. [c. 1940]
Synonyms

off-base

American  
[awf-beys, of-] / ˈɔfˈbeɪs, ˈɒf- /

adjective

  1. located outside the perimeters of a military base.

    off-base housing for officers.


off base Idioms  
  1. Wrong, relying on a mistaken premise, as in His description of the accounting system was totally off base. This metaphoric term originated in baseball, where a runner who steps off a base can be put out. [c. 1940]


Etymology

Origin of off-base

First recorded in 1935–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

McDonald are not off-base when they say that Mahmoud establishes their right to send their kids to school unvaccinated.

From Slate Dec. 9, 2025

Curious to see the effect of all that Americanness, I drove north from Naha to Makiminato, a place once dominated by American bases, off-base housing and base-adjacent businesses.

From The Wall Street Journal Oct. 25, 2025

Senior Airman Roger Fortson, 23, died at his off-base residence, the U.S.

From Seattle Times May 7, 2024

In a paper published Monday in “The Anatomical Record,” an international team of paleontologists, neuroscientists and behavioral scientists argue that Herculano-Houzel’s assumptions about brain cavity size and corresponding neuron counts were off-base.

From Los Angeles Times Apr. 29, 2024

He also took up the question of whether to provide off-base integrated schooling, balancing the difficult problem of protecting the civil rights of federal employees against the educational advantages of a state-sponsored education system.

From Integration of the Armed Forces, 1940-1965 by Morris J. MacGregor

The irony, however: That bully wasn’t completely off base.

From The Wall Street Journal Sep. 15, 2026

In fact, all of these expectations were far off base.

From MarketWatch Jul. 21, 2026

That is quite the takeaway, not to mention depressingly way off base from the point.

From Salon Mar. 21, 2026

Public perception of a double-standard for the wealthy and powerful may not be so off base.

From BBC Dec. 3, 2024

I realized, of course, that this might be because my theory about the old D&D module was completely lame and totally off base.

From "Ready Player One: A Novel" by Ernest Cline

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