Meaning & use

Achilles heel

noun·Advancedfigurative

Last updated

UK/əˌkɪliːz ˈhiːl/
US/əˌkɪliːz ˈhiːl/

Meaning

  1. nouncountablefigurative

    A single weak point that can cause the failure of someone or something that is otherwise strong.

    Grammar: Usually 'the' or 'his/her/its' Achilles heel: Speed is her Achilles heel.

    Patterns

    • someone's Achilles heel
    • the Achilles heel of something

    Poor defense was the team's Achilles heel.

    Her Achilles heel is chocolate; she cannot say no.

    Battery life is the Achilles heel of many phones.

Word forms

pluralAchilles heels

Common combinations

Achilles heel of
Cost is the Achilles heel of the project.
his Achilles heel
Impatience was his Achilles heel.
find the Achilles heel
Rivals tried to find the Achilles heel in our plan.
the company's Achilles heel
Weak sales abroad were the company's Achilles heel.

Synonyms and how they differ

weak spot
More casual and less dramatic.
vulnerability
More formal and technical.
shortcoming
Any fault, not necessarily the one fatal weakness.

Opposites

Word family

Achilles tendon noun
the tendon at the back of the heel

Commonly confused: Achilles heel or Achilles tendon?

Achilles heel vs Achilles tendon

The tendon is a body part; the heel idiom is a figurative weakness.

Practice

A sprinter wins every race but always collapses at long distances. Long distance is her ___.

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