Idiom
be one's own worst enemy
Meaning
To act contrary to one's own interests; to cause problems for oneself; to self-sabotage.
Meaning adapted from Wiktionary, available under CC BY-SA 4.0.
Examples
“He is his own worst enemy when he loses his temper.”
“She keeps missing deadlines because she procrastinates, proving that she is often her own worst enemy.”
“By refusing to accept help from his colleagues, the manager became his own worst enemy and ultimately caused the project to fail.”
Examples
simple
“He is his own worst enemy when he loses his temper.”
contextual
“She keeps missing deadlines because she procrastinates, proving that she is often her own worst enemy.”
complex
“By refusing to accept help from his colleagues, the manager became his own worst enemy and ultimately caused the project to fail.”
Key words
Related idioms
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