Rear its ugly head
Meaning
To reappear or emerge, especially of something unpleasant, troublesome, or previously suppressed.
Origin
The phrase conjures the unsettling image of a hidden monster or serpent emerging from the shadows, suddenly revealing itself after a period of dormancy. While not linked to a specific mythological beast, this potent metaphor draws on ancient human fears of unseen threats that lurk beneath the surface. By the 19th century, writers frequently employed this vivid imagery to describe the unwelcome resurgence of problems, vices, or diseases, personifying these difficulties as malevolent entities that 'rear their ugly head.' This powerful visual solidified the idiom's place in the English language, perfectly encapsulating the sudden and often disruptive return of an unpleasant issue.
Examples
- Just when we thought the project was running smoothly, budget overruns began to rear their ugly head.
- After years of relative peace, old rivalries threatened to rear their ugly head between the two neighboring countries.