0 past simple and past participle of undermine
1 to make someone less confident, less powerful, or less likely to succeed, or to make something weaker, often gradually:
A succession of scandals and revelations has undermined the government over the past year.
Suddenly she just turned on me and accused me of undermining her.
The country's economic position has been seriously undermined by this affair.
He's been trying to undermine her position by spreading rumours about her.
If you continually criticize children you can seriously undermine their confidence.
The trust of the settlement and residence parish was thereby undermined and the pauper became a problem.
Yet this in no way undermined the trend towards greater political centralization.
Our later discussion about the relation between feasibility and sincerity suggests, however, that this expressive value need not be undermined by strategic voting.
