First Known Use: 1840
Dictionary
Achilles' heel
noun
: a fault or weakness that causes or could cause someone or something to fail
Full Definition of ACHILLES' HEEL
: a vulnerable point
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Origin of ACHILLES' HEEL
from the story that Achilles was vulnerable only in the heel
Related to ACHILLES' HEEL
- Synonyms
- back, chink, jugular, soft spot, underbelly
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