Crossword clues for Don't be so serious! 9 letters:OHCOMENOWLet's be serious here ...LOSESLEEPSeriously worryUPTHEANTEGet serious, gambler-styleFACETIOUSNot meant to be taken seriouslyDEEPWATERSerious difficulty.DRAMEDIESSeriously funny shows?JACKKNIFESerious accidentNEARFATALVery serious, as an accidentEARNESTLYSeriously.PIZZAFACEOne with serious acne, pejorativelyDEEPWATERSerious trouble, so to speakMARIOCARPSerious complaint from author Puzo?SOLEMNITYSeriousnessTURNSITONGets seriousEXTENUATERender less serious by giving excuses.OHBROTHER*"Seriously!?"ACUTECAREClinic service for serious injuriesNOSEDIVESSerious downturnsNOKIDDINGAre you serious?BELIEVEITSeriously!SICKWEAVEFabric that needs serious mending?REENACTOROne seriously into Civil War history, maybeENDEAVORSSerious effortsDONTLAUGHNo, seriously!MORTALSINSerious offense against GodOHBROTHERNo, you can't be serious!SEAKITTENWhat PETA wants to rename the fish, in hopes that people will stop catching and eating fish (seriously)UNRIVALEDLacking serious challengeCOMEONMANDude... seriously?!IMEANCMONSeriously now...SINKSONESWith 48-Across, starts serious work onINAMORATASerious girlfriendBOMBSHELLSerious surpriseINEARNESTSeriouslyREDALERTSWarnings of serious danger (NL Central)HEAVYDATESerious social engagementATALOWEBBDeclining seriouslyITSNOJOKEI'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 accidentsSMILELESSSerious; dourBOOKWORMSVery serious studentsARCHRIVALSerious competitorTAKEATOLLResult in serious damageHERETICALSeriously at odds with general opinion