rearguard
Americanadjective
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of or relating to a rear guard.
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designed to oppose or prevent in a defensive way.
a rearguard strategy.
noun
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a detachment detailed to protect the rear of a military formation, esp in retreat
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an entrenched or conservative element, as in a political party
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an action fought by a rearguard
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a defensive action undertaken to try to stop something happening or continuing
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Etymology
Origin of rearguard
First recorded in 1895–1900; attributive use of rear guard
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.
When they do come to bat, it will take a remarkable rearguard to avoid a fourth defeat of a desperately disappointing series.
From BBC • Jan. 6, 2026
They pushed Arsenal close with their rearguard action at Emirates Stadium last weekend, but still lost in the end.
From BBC • Dec. 18, 2025
From there it was the Warriors' rearguard which decided the outcome.
From BBC • Oct. 3, 2025
Crosses into the box, shots from distance, physical confrontations, a rearguard action - he revelled in it.
From BBC • Mar. 20, 2025
The cart moved off with Matthias positioned on the back providing a rearguard.
From "Redwall" by Brian Jacques
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.