sustained

Something that's sustained is held or maintained for a long time, keeping its strength or level consistent and unbroken. A singer's sustained note goes on and on, and a judge's sustained ruling continues to be upheld.

The adjective sustained, which describes something that goes on uninterrupted for a long time, comes from the Latin word sustinere, "to hold up, support, or endure." Something sustained can be either good or bad: a sustained conflict is never good, but a sustained peace is something to be fought for.

Definitions of sustained
  1. adjective
    maintained at length without interruption or weakening
    sustained flight”
    Synonyms:
    continuous, uninterrupted
    continuing in time or space without interruption
  2. adjective
    (of an electric arc) continuous
    synonyms: free burning
    continuous, uninterrupted
    continuing in time or space without interruption
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