Achilles’ heel or Achilles heel
📖 Definitions
noun
A seemingly small but critical weakness in an otherwise strong position.
💬 Usage Examples
“The danger of being seen as courting noxious supporters is a long-standing worry for right-of-centre politicians. Preston Manning ... has argued that it is the Achilles heel of the conservative movement.” John Geddes & Jason Markusoff; Target Andrew Scheer; Maclean’s (Toronto, Canada); Jun 2019.