Definition from Wiktionary, the free dictionary
- IPA: /ˈkwi.ɛsn̩t/, /ˈkwai.ɛsn̩t/
- Inactive, at rest, quiet.
- The bats were quiescent at that time of day, so we slowly entered the cave.
- Professor Wilson
- In times of national security, the feeling of patriotism […] is so quiescent that it seems hardly to exist.
- (grammar) Not sounded; silent.
- The y is quiescent in "day" and "say".
Inactive, at rest, quiet
Derived terms 
See also 
- third-person plural future active indicative of quiēscō