Also means
allegedly
Usage Note
Supuestamente introduces a claim the speaker does not vouch for — closer to 'allegedly' in formal or journalistic contexts than the weaker English 'supposedly'. It often signals scepticism or reported speech. The related adjective supuesto means 'alleged' or 'supposed' (el supuesto culpable).
Examples
"Supuestamente, el paquete llegará mañana."
Natural Translation
Supposedly, the package will arrive tomorrow.

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