Crossword clues for _____ unknown 5 lettersAnswerClueXANDYUnknowns in algebraSCOTTGreat Unknown author of the 32 Waverley novelsSINESLaw of ___ (equation that can be used to compute unknown side lengths of triangles)MIROSThe Birth of the World and "The Beautiful Bird Revealing the Unknown to a Pair of Lovers," e.g.XANDYSimultaneous equation unknownsBSIDERelatively unknown song, usuallyAIDANQuinn of "Unknown"OTHOUCome, ___ Traveller Unknown, hymn by WesleyASYETUnknown beginningMUTTSThey're of unknown descentASYET_____ unknownAUDENThe Unknown Citizen poetAWARELabel that seeks unknownsNOVELHitherto unknownGHOSTLiterary unknown.ANONSUnknown ones, brieflyDEMOSUnknowns' recordingsERROLThe Unknown Known documentary director MorrisTERRA___ incognita (unknown land): Latin.AESOPBabrius versified his fables, date unknown.ANONSAbbreviations indicating "authors unknown."SELAHBiblical word of unknown meaning.ELENAAuthor Ferrante whose true identity is unknownSELAHO.T. term of unknown meaningITSMEUnhelpful text from an unknown numberSELAHHebrew word of unknown meaningDIANEActress Kruger of "Unknown"XANDYAlgebraic unknownsELISEBeethoven title woman (whose identity is unknown)ERROLMorris who directed "The Unknown Known," 2013TERRA___ incognita (unknown land)UNKNOWNObscureUNKNOWNSSolvers' problemsUNKNOWNSX-quantities to be solvedUNKNOWNSTomb of the ___UNKNOWNX, in mathUNKNOWNLike the planet Pluto before 1930UNKNOWNHardly a celebrityUNKNOWNInconnu.UNKNOWNSMathematical variables, oftenUNKNOWNSThey're solved for in algebraUNKNOWNWaiting to be discoveredUNKNOWNSX and Y, in algebraUNKNOWNSX and y, in equationsUNKNOWNIncalculable.UNKNOWNSomething to solve for, in algebraUNKNOWNAnonymousUNKNOWNArlington soldierUNKNOWNX, in algebraUNKNOWNx, at times