A direction in musical notation indicating that the musical piece should be played very fast and lively.(adverb)
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Use "allegrissimo" in a sentence
"Florence, and cannot help presenting the most serious events in a boisterous allegrissimo, perhaps not without a malicious artistic sense of the contrast he ventures to present -- long, heavy, difficult, dangerous thoughts, and a TEMPO of the gallop, and of the best, wantonest humour?"
"_prestissimo_ (superlative of _presto_) _vivacissimo_ (superlative of _vivace_) _allegrissimo_ (superlative of _allegro_) _prestissimo possibile_ (hypersuperlative of _presto_)"