Undermine

/ˌʌn.dəˈmaɪn/

Meaning & Definition

verb
To weaken or damage something, especially gradually or imperceptibly.
The constant criticism from his colleagues began to undermine his confidence.
To erode the base or foundation of something, often leading to collapse.
Heavy rains can undermine the integrity of the building's foundation.
To weaken a person's authority or position, often by indirect means.
Her gossiping went to great lengths to undermine her boss's authority in the office.
To damage someone's reputation or standing through subtle means.
The scandal was designed to undermine the politician's credibility.

Etymology

Middle English 'underminen', from 'under' + 'mine' (to excavate or dig).

Common Phrases and Expressions

undermine authority
To weaken someone's power or influence.
undermine trust
To damage the confidence someone has in another person.
undermine efforts
To weaken the attempts made towards achieving a goal.

Related Words

gradual
Taking place or progressing slowly or by degrees.
subversion
The act of systematically undermining or overthrowing a system or structure.
erosion
The process of gradually destroying or diminishing something.

Slang Meanings

To throw shade
She was undermining his latest project, throwing shade at every opportunity.
To backstab
He decided to backstab his colleague, undermining their chances for promotion.