1. Lack of originality or freshness; the quality of being dull and hackneyed
   "The staleness of his pickup lines made her roll her eyes";
   - triteness
    
2. Having lost purity and freshness as a consequence of aging
   "The staleness of the bread made it unappetizing"

See also: stale

Type of: oldness, unoriginality

Antonym: freshness

Encyclopedia: Staleness