Crossword clues for Don't be so serious! 9 letters:PIZZAFACEOne with serious acne, pejorativelyNARCOTICSSerious social problemNEARFATALVery serious, as an accidentOHBROTHERNo, you can't be serious!UPTHEANTEGet serious, gambler-styleFACETIOUSNot meant to be taken seriouslyDEEPWATERSerious difficulty.DRAMEDIESSeriously funny shows?SICKWEAVEFabric that needs serious mending?REENACTOROne seriously into Civil War history, maybeOHCOMENOWLet's be serious here ...MORTALSINSerious offense against GodMARIOCARPSerious complaint from author Puzo?SEAKITTENWhat PETA wants to rename the fish, in hopes that people will stop catching and eating fish (seriously)SOLEMNITYSeriousnessTURNSITONGets seriousEXTENUATERender less serious by giving excuses.OHBROTHER*"Seriously!?"ACUTECAREClinic service for serious injuriesNOSEDIVESSerious downturnsNOKIDDINGAre you serious?JACKKNIFESerious accidentTAKEATOLLResult in serious damageBOOKWORMSVery serious studentsENDEAVORSSerious effortsUNRIVALEDLacking serious challengeDONTLAUGHNo, seriously!EARNESTLYSeriously.ATALOWEBBDeclining seriouslyDEEPWATERSerious trouble, so to speakCOMEONMANDude... seriously?!IMEANCMONSeriously now...SINKSONESWith 48-Across, starts serious work onINAMORATASerious girlfriendBOMBSHELLSerious surpriseINEARNESTSeriouslyREDALERTSWarnings of serious danger (NL Central)HEAVYDATESerious social engagementSMILELESSSerious; dourITSNOJOKEI'm seriousRUSTEATENSeriously weathered, as old carsHEAVYDATESerious romantic outingHUMANRACESeriously endangered group in Mary Shelley's "The Last Man"MORTALSINSerious transgression, in CatholicismKIDAROUNDNot be seriousREDALERTSSerious warningsNEARFATALLike some serious accidentsBELIEVEITSeriously!ARCHRIVALSerious competitorLOSESLEEPSeriously worry