Meaning A fatal weakness in an otherwise strong person or thing.
Usage Worldwide, but more commonly amongst the older generation.
Example
- JFK’s Achilles heel was his inability to ignore the charms of a long-legged blonde.
Pronunciation
Idiom
Achilles heel
What does "Achilles heel" mean?
A fatal weakness in an otherwise strong person or thing.
Achilles’ heel
The United Kingdom - 19th century.