Achilles heelnoun [ C usually singular ]
uk/əˌkɪl.iːz ˈhiːl/us/əˌkɪl.iːz ˈhiːl/a small problem or weakness in a person or system that can result in failure:
Maths has always been my Achilles heel.
Thesaurus: synonyms and related words
Faults and mistakes
- a blot on sb's character idiom
- aberration
- adrift
- black mark
- blemish
- chink
- clinker
- creep in/creep into sth
- erratum
- error
- failing
- false alarm
- false move
- faux pas
- lapse
- loophole
- misprint
- misspell
- mistake
- mistaken
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You can also find related words, phrases, and synonyms in the topics:
Weakness and vulnerability