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- DictionaryUn·der·mine/ˌəndərˈmīn/
verb
- 1. erode the base or foundation of (a rock formation): "the flow of water had undermined pillars supporting the roof"
- 2. lessen the effectiveness, power, or ability of, especially gradually or insidiously: "this could undermine years of hard work"
Learn the meaning of undermine, a verb that can mean to subvert, weaken, wash away, or excavate. See synonyms, examples, word history, and related entries.
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Undermine means to make someone or something weaker, often gradually. Learn how to use this verb in different contexts with sentences from the Cambridge English Corpus.
to injure or destroy by insidious activity or imperceptible stages, sometimes tending toward a sudden dramatic effect. to attack by indirect, secret, or underhand means; attempt to subvert by stealth. to make an excavation under; dig or tunnel beneath, as a military stronghold.
To undermine literally means to dig a hole underneath something, making it likely to collapse. But we more often use the word to describe sabotage or the act of weakening someone else's efforts.
Undermine means to make something, especially somebody’s confidence or authority, gradually weaker or less effective. Learn how to use this verb with pictures, pronunciation, synonyms and more.
Undermine means to weaken, damage, or subvert something or someone by indirect or gradual means. Learn the word frequency, pronunciation, grammar, and usage of undermine with Collins English Dictionary.
Undermine means to make someone less confident or make something weaker. See how to use this verb in sentences and translations in different languages.