(one's) own worst enemy
(one's) own worst enemy
Causing complications to one's life or keeping oneself from success; self-destructive or self-sabotaging. Tommy's becoming his own worst enemy with the way he's been skipping school lately. She always sabotages a relationship when it's going really well because she's her own worst enemy.
See also: enemy, own, worst
Farlex Dictionary of Idioms.
*one's own worst enemy
Fig. consistently causing oneself to fail; more harmful to oneself than other people are. (*Typically: be ~; become ~.) Ellen: My boss is my enemy. She never says anything good about me. Jane: Ellen, you're your own worst enemy. If you did your job responsibly, your boss would be nicer.
See also: enemy, own, worst
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
your own worst enemy
COMMON If you say that someone is their own worst enemy, you mean that their own behaviour causes most of their problems. In a way I'm my own worst enemy — too critical and hard on myself. The patients are their own worst enemy. They keep missing appointments.
See also: enemy, own, worst
Collins COBUILD Idioms Dictionary, 3rd ed.
- one's own worst enemy
- your own worst enemy
- every man is his own worst enemy
- be (one's) own worst enemy
- be your own worst enemy
- walk heavy
- like to hear (oneself) talk
- like to hear oneself talk
- stay hungry
- too big for one's britches (breeches)