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verb (used with object), un·der·mined, un·der·min·ing. 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.
pronunciation: uhn dr maIn. features: Word Combinations ( verb) The meaning of undermine. Definition of undermine. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.
Jul 1, 2021 · According to the Merriam-Webster Unabridged Dictionary of the English Language as well as American Heritage and Collins English Dictionary, the word undermine (pronunciation of undermine: ˌʌndəˈmaɪn) is a verb that means to subvert or weaken secretly or insidiously, to perm an excavation on the Earth from beneath something to form a mine, or to...
