Undermine Meaning. To wash away supporting material from under. Weaken sabotage subvert compromise More Synonyms of undermine.
Lessen the effectiveness power or ability of especially gradually or insidiously To dig or excavate beneath a building or fortification so as to make it collapse To erode the base or foundation of a rock formation To decrease in strength or intensity. ˌʌndɚˈmaɪn C2 to make someone less confident less powerful or less likely to succeed or to make something weaker often gradually. To tunnel or dig beneath.
Criticism just undermines their confidence.
To make someone or something weaker or less effective usually in a secret or gradual way She tried to undermine my authority by complaining about me to my boss. The events of the past year have undermined peoples confidence in the government. Mar 29 2021 1. To gradually make someone or something less strong or effective economic policies that threaten to undermine the health care system undermine somebodys.
