an/somebody's Achilles' heel

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Related to Achilles Heel: heel pain

Achilles' heel

A weakness or vulnerability that can lead to permanent destruction or downfall. In Greek mythology, the hero Achilles was killed after being struck in the heel—the only weak spot on his body. Improper security measures were the failed company's Achilles' heel. I'm a good student, but I know I won't score high enough on the scholarship test because math is my Achilles' heel.
See also: heel

Achilles' heel

Fig. a weak point or fault in someone or something otherwise perfect or excellent. (From the legend of Greek hero Achilles, who had only one vulnerable part of his body, his heel; as an infant his mother had held him by one heel to dip him in the River Styx to make him invulnerable.) He was very brave, but fear of spiders was his Achilles' heel.
See also: heel

Achilles' heel

A fatal weakness, a vulnerable area, as in This division, which is rarely profitable, is the company's Achilles' heel. The term alludes to the Greek legend about the heroic warrior Achilles whose mother tried to make him immortal by holding the infant by his heel and dipping him into the River Styx. Eventually he was killed by an arrow shot into his undipped heel. [c. 1800]
See also: heel

an/somebody’s Achilles’ ˈheel

a hidden weakness or fault in somebody which may be used to harm them: His pride proved to be his Achilles’ heel.This expression is named after the Greek hero Achilles. When he was a small child, his mother dipped him into the river Styx, which meant that he could not be injured. She held him by his heel, which therefore was not touched by the water. Achilles died after being wounded by an arrow in the heel.
See also: heel

Achilles' heel

A vulnerable or weak spot. The term is derived from the Greek myth of the hero Achilles, whose mother held him by the heel while dipping him into the River Styx to make him immortal. He eventually was killed by an arrow shot into his heel. The term became a literary metaphor about two centuries ago and remains current as a cliché.
See also: heel

Achilles' heel

A vulnerable spot that leads to a downfall. According to Greek mythology, anyone who was immersed in the River Styx, which marked the boundary of the underworld, became invulnerable. Thetis dipped her young son Achilles in the river, but she held him by his heel. Because her hand covered that part of his body, the water did not touch it and it became his one vulnerable spot. Achilles, who grew to become a great warrior, died during the Trojan War when an arrow struck his heel. Even though it's located in the same part of the body, don't confuse “Achilles' heel” with “Achilles tendon,” which connects muscles in your lower leg to your heel bone.
See also: heel
References in periodicals archive ?
If you are our lucky winner you will receive pounds 100 worth of running gear from Glasgow's top running shoe specialists Achilles Heel.
Bill tore his Achilles Heel in a football injury in the summer and thought up the recipe while laid up in plaster.
Cavan have it all to do but, like Meath, Fermanagh's defence could yet be their achilles heel.
Even though their biggest hits - such as Dancing in the Moonlight, Just Hold On and Achilles Heel - are catchy enough for a good old singalong, they are still no more inspiring than your average Gareth Gates single.
He added: "The failure of David Trimble to require decommissioning as part of the Agreement is his Achilles heel.
This picking and choosing of unknown parameters remains the Achilles heel of comet modeling, suggests Karen J.
It is not immorality per se which is the Achilles heel of New Labour.
The striker, who scored after 39 seconds for the reserves on Monday almost six months since rupturing his Achilles heel, said: "I felt bad for the club - they invested a lot of money in me and then I got injured.
I'm not convinced by our manager Mark McGhee's constant claim that our defensive Achilles heel is down to a lack of height at the back.