sillily Definition
in a silly or foolish manner.
Using sillily: Examples
Take a moment to familiarize yourself with how "sillily" can be used in various situations through the following examples!
Example
She giggled sillily at his jokes.
Example
He acted sillily in front of his friends.
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Summary: sillily in Brief
The adverb 'sillily' [ˈsɪli] means in a silly or foolish manner. It is often used to describe behavior that is not serious or mature, as in 'She giggled sillily at his jokes.'