Undermine meaning

ŭndər-mīn
To injure, weaken, or impair, esp. by subtle, stealthy, or insidious means.
verb
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To weaken by wearing away a base or foundation.

Water has undermined the stone foundations.

verb
3
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To weaken, injure, or impair, often by degrees or imperceptibly; sap.

Late hours can undermine one's health.

verb
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To dig a mine or tunnel beneath.
verb
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To dig beneath; excavate ground from under, so as to form a tunnel or mine.
verb
1
1
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To wear away and weaken the supports of.

Erosion is undermining the wall.

verb
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To dig underneath (something), to make a passage or for destructive or military purposes; to sap. [from 14th c.]
verb
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(figuratively) To weaken or work against; to hinder, sabotage. [from 15th c.]

The war efforts were undermined by the constant bickering between the allies.

verb
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Undermine is defined as to dig beneath, weaken or injure.

An example of to undermine is digging a space under a walkway for irrigation.

An example of to undermine is a weak person on a team making the team lose a game.

verb
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2

Origin of undermine

  • From under- +"Ž mine.

    From Wiktionary