excepcionalmente
exceptionally
adverb ehk-sep-syoh-NAHL-men-teh Rare
Usage Note
Excepcionalmente can mean either 'to an exceptional degree' (un talento excepcionalmente raro) or 'as an exception on this occasion' (excepcionalmente, la tienda abrirá el domingo). Context disambiguates the two senses. It is formal and appears more in writing and official announcements than in casual speech.
Examples
"Hoy el museo abrirá excepcionalmente a las ocho."
Natural Translation
Today the museum will exceptionally open at eight.

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