Read the dictionary definition of silly. All definitions for this word.
1. a word used for misbehaving children
1. don't be a silly
2. dazed from or as if from repeated blows
1. knocked silly by the impact
2. slaphappy with exhaustion
3. punch-drunk with love
3. inspiring scornful pity
1. how silly an ardent and unsuccessful wooer can be especially if he is getting on in years
4. lacking seriousness; given to frivolity
1. a dizzy blonde
2. light-headed teenagers
3. silly giggles
5. ludicrous, foolish
1. wore a goofy hat
2. a silly idea
3. some wacky plan for selling more books