Cool MateFlaw vs Weakness
When to use each in English, with meaning, register, and examples.
Flaw
Top 2,000 (common)C1noun
Weakness
Top 2,000 (common)B2noun
| Flaw | Weakness | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/flɔː/"]/🇺🇸 /["/flɔː/"]/ | 🇬🇧 /["/ˈwiːknəs/"]/🇺🇸 /["/ˈwiːknəs/"]/ |
| Meaning | A mistake or defect in something. | A part of someone or something that is not strong. |
| Example | The diamond was nearly perfect, but it had a tiny flaw that lowered its value. | Her greatest weakness is her inability to say no to others. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | C1 | B2 |
| Part of speech | noun | noun |
| Collocations | big, main, major, contain, have, look for, appear, become apparent, flaw in, big, main, major, contain, have, look for, appear, become apparent, flaw in, big, main, major, contain, have, look for, appear, become apparent, flaw in | big, fundamental, great, have, suffer from, cause, be, lie, weakness in, a moment of weakness, a sign of weakness, strengths and weaknesses, big, fundamental, great, have, suffer from, cause, be, lie, weakness in, a moment of weakness, a sign of weakness, strengths and weaknesses, real, have, develop, overcome, weakness for |
| Antonyms | perfection, strength, virtue | strength, power, fortitude |
| Common mistakes | Confused with 'flawless' — they are opposites., Using 'flaw' as a verb (it is a noun)., Overusing it in casual speech; it's more formal. | Confused with 'weak' as an adjective., Used inappropriately when describing personal traits in a job interview., Misunderstood as a sign of failure rather than an area for improvement. |
| Usage notes | Use 'flaw' to describe imperfections in objects, plans, or arguments. It's appropriate in both spoken and written contexts but is less likely to be used in very casual or slang conversations. | Use in both casual and formal contexts to describe physical or emotional frailty. Avoid in strong or competitive contexts where you might want to highlight strengths. |
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Frequently asked questions: Flaw vs Weakness
What's the difference between Flaw and Weakness?
Flaw: A mistake or defect in something. Weakness: A part of someone or something that is not strong.
Which is more advanced: Flaw and Weakness?
Flaw is the highest level, at C1, on the CEFR scale.
Are Flaw and Weakness the same CEFR level?
Flaw: C1, Weakness: B2 on the CEFR scale.
What part of speech are Flaw and Weakness?
Flaw: noun, Weakness: noun.
Can you show an example of each?
Flaw: The diamond was nearly perfect, but it had a tiny flaw that lowered its value. Weakness: Her greatest weakness is her inability to say no to others.
Can I use Flaw and Weakness interchangeably?
Not always. Flaw and Weakness are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.