Definitions

1. noun

the state or quality of being silly; foolish or absurd behavior or language.

“Her silly antics were a source of silliness to everyone at the party.”

2. noun

something silly or absurd.

“The comedy show was filled with silliness, making it a hit among viewers.”

3. noun

foolish or absurd talk or writing.

“The article’s silliness was evident in its ridiculous claims and unproven theories.”