Cool MateAllegedly vs Supposedly
When to use each in English, with meaning, register, and examples.
Allegedly
Top 2,000 (common)C1adverb
Supposedly
Top 3,000 (common)C1adverb
Most common: Allegedly
| Allegedly | Supposedly | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/əˈledʒɪdli/"]/🇺🇸 /["/əˈledʒɪdli/"]/ | 🇬🇧 /["/səˈpəʊzɪdli/"]/🇺🇸 /["/səˈpəʊzɪdli/"]/ |
| Meaning | It is said that something is true, but it hasn't been proven. | Something is believed to be true, but it may not be. |
| Example | crimes allegedly committed during the war | The novel is supposedly based on a true story. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 3,000 (common) |
| CEFR level | C1 | C1 |
| Part of speech | adverb | adverb |
| Collocations | allegedly involved, allegedly committed, allegedly stated, allegedly seen, allegedly linked | supposedly true, supposedly said, supposedly happening, supposedly planned, supposedly proven |
| Antonyms | undeniably, certainly, definitely, unquestionably | actually, definitely, certainly |
| Common mistakes | Using it in informal contexts where a more casual phrase would be better., Confusing it with 'allegation', which is a noun., Misplacing it in a sentence, often using it before the subject instead of before the verb. | 'Supposedly' vs 'supposably' confusion., Using 'supposedly' in overly formal contexts., Misplacing 'supposedly' within a sentence. |
| Usage notes | Use 'allegedly' when reporting accusations or claims that are not confirmed. It's common in news articles but less so in casual conversations. | Use 'supposedly' when describing something that is commonly accepted but may not be true. It's neutral and generally suitable in both spoken and written contexts, but avoid in informal conversations. |
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Frequently asked questions: Allegedly vs Supposedly
What's the difference between Allegedly and Supposedly?
Allegedly: It is said that something is true, but it hasn't been proven. Supposedly: Something is believed to be true, but it may not be.
Which is more common: Allegedly and Supposedly?
Allegedly is the most common in everyday English.
Are Allegedly and Supposedly the same CEFR level?
Allegedly: C1, Supposedly: C1 on the CEFR scale.
What part of speech are Allegedly and Supposedly?
Allegedly: adverb, Supposedly: adverb.
Can you show an example of each?
Allegedly: crimes allegedly committed during the war Supposedly: The novel is supposedly based on a true story.
Can I use Allegedly and Supposedly interchangeably?
Not always. Allegedly and Supposedly 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.