pianissimo UK /ˌpi.əˈnɪsɪməʊ/US /ˌpi.əˈnɪsɪmoʊ/noun 2adverb 1forms 4 noun2 •A portion of music that is played very softly. •A dynamic sign indicating that a portion of music should be played pianissimo. adverb1 •Indicating that the piece is to be played very softly. formspianissimi · pianissimos · more pianissimo · most pianissimo
