unprecedented
BrE /ʌnˈpresɪdəntɪd/ AmE /ʌnˈprɛsɪdəntɪd/
adjective en → es
never done or experienced before; without precedent
sin precedentes, inédito
Collocations unprecedented event · unprecedented decision
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The company's profits were unprecedented.
Las ganancias de la empresa fueron sin precedentes.
new and unusual; not seen or experienced before
novedoso, inédito
Collocations unprecedented change · unprecedented situation
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The government announced unprecedented measures.
El gobierno anunció medidas novedosas.