Expressions used in Everyday Spoken English in Social and Professional contexts
1) to go against somebody, to work against, to make someone look bad
How to MemorizePopularity MediumProfessional MediumSocial
John completely undermined me in that meeting, undermine sb's authority
The verb 'to undermine' means to reduce the effect, power or ability of someone or something, usually incrementally or over a period of time. When you 'undermine' someone you might show that they are wrong or make them lose face in some way. It can also mean 'to erode' if you are talking about a rock or the base of something.
Professional Examples (Advance)
Selling unhealthy food in the staff canteencompletely undermines our healthy living program.
Any virus in our system willundermine our security software, our customers will lose confidence.
Mary was alwaysarguing with her Manager. She was always trying toundermine his authoritywhen he spoke to others.
Social Examples (Basic)
My father always thinks I am trying to undermine him when I tell him he is wrong.
Don't undermine me in front of the boss like that again.
Professional Examples (Basic)
Mary was always arguing with her Manager. She was always trying to undermine his authority when he spoke to others.
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