Definitions:

1. a small inexpensive mass-produced article noun
   • The store sold party favors, knickknacks, and other such novelties.
2. cheap showy jewelry or ornament on clothing noun
   • I could hardly believe the tacky novelty they wore to the opera!
3. originality by virtue of being new and surprising noun
   • The critics all commented on the novelty of the artist's work.

Synonyms:

• freshness
• gaud
• knickknack