adverb
- in a silly manner; foolishly or without good sense
Examples
- She giggled sillily at the joke.
- He was acting sillily during the meeting.
- The children danced sillily around the room.
- Don’t behave so sillily in front of your grandparents.
- She sillily forgot her keys again.
- The dog ran sillily in circles chasing its tail.