Noun
The quality or state of being stale.
Source: Webster's dictionaryI like moments of staleness and mildew, simply because it creates the lane for change. Lyor Cohen
After all, there is a certain safety is sticking with what we know despite its staleness. Source: Internet
Hui speculated that this may be due to the spontaneous nature of random acts of kindness, allowing more variety and warding off a sense of staleness or monotony. Source: Internet