I. |pēəˌnisəˌmō adverb (or adjective)
Etymology: Italian, from piano softly + -issimo, suffix denoting a high degree of (from Latin -issimus, superl. suffix)
: very softly — used as a direction in music; abbr. pp, ppp
II. noun
( plural pianissi·mi -sə(ˌ)mē ; or pianissimos )
: a passage played, sung, or spoken very softly
whispering pianissimi