Reportedly vs Supposedly

When to use each in English, with meaning, register, and examples.

Reportedly

Top 5,000 (fairly common)C1adverb

Supposedly

Top 3,000 (common)C1adverb
Most common: Supposedly
 ReportedlySupposedly
Pronunciation🇬🇧 /["/rɪˈpɔːtɪdli/"]/🇺🇸 /["/rɪˈpɔːrtɪdli/"]/🇬🇧 /["/səˈpəʊzɪdli/"]/🇺🇸 /["/səˈpəʊzɪdli/"]/
MeaningIt is said that something is true, but not confirmed.Something is believed to be true, but it may not be.
ExampleThe band have reportedly decided to split up.The novel is supposedly based on a true story.
RegisterNeutralNeutral
How commonTop 5,000 (fairly common)Top 3,000 (common)
CEFR levelC1C1
Part of speechadverbadverb
Collocationsreportedly confirmed, reportedly involved, reportedly statedsupposedly true, supposedly said, supposedly happening, supposedly planned, supposedly proven
Antonymsunconfirmedly, anecdotally, allegedly notactually, definitely, certainly
Common mistakesConfused with 'reported' vs 'reportedly', Using it in informal settings where a simpler word would be better, Incorrectly placing it before the subject instead of the verb'Supposedly' vs 'supposably' confusion., Using 'supposedly' in overly formal contexts., Misplacing 'supposedly' within a sentence.
Usage notesUse 'reportedly' to indicate that information comes from another source and may not be verified. It's more appropriate in formal contexts, like news articles, rather than casual conversation.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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Supposedly

Frequently asked questions: Reportedly vs Supposedly

What's the difference between Reportedly and Supposedly?

Reportedly: It is said that something is true, but not confirmed. Supposedly: Something is believed to be true, but it may not be.

Which is more common: Reportedly and Supposedly?

Supposedly is the most common in everyday English.

Are Reportedly and Supposedly the same CEFR level?

Reportedly: C1, Supposedly: C1 on the CEFR scale.

What part of speech are Reportedly and Supposedly?

Reportedly: adverb, Supposedly: adverb.

Can you show an example of each?

Reportedly: The band have reportedly decided to split up. Supposedly: The novel is supposedly based on a true story.

Can I use Reportedly and Supposedly interchangeably?

Not always. Reportedly 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.

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