- 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 k is quiescent in "knight" and "know".
- (cell biology) Non-proliferating.
Inactive, at rest, quiet