Definition of prestissimo in English:

prestissimo

adverb & adjective

Music
  • (especially as a direction) in a very quick tempo.

    • ‘The wood in the half-light waking at daybreak to the belling of stags that bursts into barks; the wood doubled over the prestissimo riffs, the wood enjoying the sea's sport.’
    • ‘At 13:50, her version is almost three minutes slower than Krysa's and because of that, the piece breathes easily between the prestissimo flights of fancy.’

noun

Music
  • A movement or passage marked to be performed in a very quick tempo.

    • ‘The unravelling has run faster than prestissimo.’
    • ‘The short prestissimo lasts just over two minutes and is an intriguing option instead of a full-blown Scherzo.’

Origin

Italian, superlative of presto quick, quickly (see presto).

Pronunciation:

prestissimo

/prɛˈstɪsɪməʊ/