altissimo

from WordNet (r) 3.0 (2006)

altissimo
    adj 1: very high

from The Collaborative International Dictionary of English v.0.48

Altissimo \Al*tis"si*mo\, n. [It.; superl. of alto.] (Mus.)
   The part or notes situated above F in alt.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

high-pitched \high-pitched\ adj.
   1. high in pitch or frequency; -- used of sounds and voices.
      Opposite of {low}. [Narrower terms: {adenoidal, pinched,
      nasal}; {altissimo}; {alto}; {countertenor, alto};
      {falsetto}; {peaky, spiky}; {piping}; {shrill, sharp};
      {screaky, screechy, squeaking, squeaky, squealing};
      {soprano, treble}; {sopranino}; {tenor}]

   Syn: high.
        [WordNet 1.5]

   2. set at a sharp or high angle or slant; as, a high-pitched
      roof.

   Syn: steeply pitched, steep.
        [WordNet 1.5] high-power