Crossword clues for It can be silly:SILLYGooseySILLYEmpty-headedSILLY____ PuttySILLYFoolishSILLINESSEndearing quality of punsSILLIESFoolish people.SILLYHarebrainedSILLYPaul McCartney "___ Love Songs"SILLYA bit ludicrousSILLYZanySILLYYou ___ goose!SILLYDazedSILLYNot remotely seriousSILLYBirdbrainedSILLY__ StringSILLYFeatherbrainedSILLYWitless.SILLYLacking good sense.SILLYBilly or gooseSILLIESGoofballsSILLYOff-the-wallSILLYKind of puttySILLYGoofySILLIESFruit loopsSILLYInaneSILLYNot at all seriousSILLYWord before "Putty" or "String"SILLYWeak-mindedSILLIESShake My _____ Out (children's song by Raffi)SILLINESSRidiculous actsSILLYNonsensicalSILLYFatuousSILLYBad way to be knockedSILLYFrivolousSILLYLacking gravitySILLYRidiculousSILLYAsinineSILLYAbsurdSILLYCuckooSILLYMuttonheadedSILLYToo frivolousSILLYUnwise.SILLYVacuous.SILLIESFoolsSILLYPreposterousSILLINESSTypical Three Stooges comedySILLYDon't be ___SILLYCockamamieSILLYHardly seriousGOOFBALLSSilly, silly people