pianissimo

pianissimo
    adv 1: a direction in music; to be played very softly [syn:
           {pianissimo}, {very softly}] [ant: {fortissimo}, {very
           loudly}]
    adj 1: chiefly a direction or description in music; very soft
    n 1: (music) low loudness [syn: {piano}, {pianissimo}]
    

Pianissimo \Pi`a*nis"si*mo\, a. [It., superl. of piano.] (Mus.)
   Very soft; -- a direction to execute a passage as softly as
   possible. (Abbrev. pp.)
   [1913 Webster]
    

86 Moby Thesaurus words for "pianissimo":
      a cappella, a la sourdine, abbandono, accrescendo, adagietto,
      adagio, affettuoso, agilmente, agitato, allegretto, allegro,
      amabile, amoroso, andante, andantino, appassionatamente,
      appassionato, barely audible, brillante, capriccioso, con affetto,
      con agilita, con agitazione, con amore, crescendo, decrescendo,
      dim, diminuendo, dimly, distant, dolce, faint, faint-voiced,
      faintly, feeble, feebly, forte, fortissimo, gentle, gently,
      half-heard, hushedly, indistinct, lamentabile, larghetto,
      larghissimo, largo, legato, leggiero, low, marcando, morendo,
      murmured, parlando, piano, pizzicato, prestissimo, presto,
      rallentando, ritardando, ritenuto, scarcely heard, scherzando,
      scherzo, scherzoso, soft, soft-sounding, soft-voiced, softly,
      sordamente, sordo, sotto voce, spiccato, staccato, stretto,
      subaudible, subdued, subduedly, tremolando, tremoloso, trillando,
      unclear, weak, weak-voiced, weakly, whispered