D defs.my
Entry 1 sense Webster, 1913

Sustained

/səs-tānd'/ · Sus·tained · IPA /səˈsteɪnd/
01 a. Held up to a certain pitch, degree, or level; uniform; as, sustained pasion; a sustained style of writing; a sustained note in music.
  1. 1.
    Held up to a certain pitch, degree, or level; uniform; as, sustained pasion; a sustained style of writing; a sustained note in music.