quiescent

/kwɪˈɛsənt/

/kwaɪˈɛsənt/

[adjective]

quiescent

[ADJECTIVE]

not active or activated

in a way that was not expected

synonyms : out of the blue

unexpectedly

being quiet or still or inactive

(pathology) causing no symptoms

marked by a state of tranquil repose

Examples

1. It's reasonably quiescent.

2. And just like in most major galaxies, this black hole is currently quiescent.

3. These are called quiescent galaxies because at some point in the galaxy’s life, its star formation stopped.

4. Their autopsy revealed the characteristic signs of strangulation: the quiescent galaxies had much higher levels of heavy metals than the living, star-forming galaxies.