rarest arrest rraest rraest arrest rarest raerst arerst rearst erarst aerrst earrst rreast rreast rerast errast rerast errast arerst raerst aerrst earrst rearst erarst rarset arrset rraset rraset arrset rarset rasret arsret rsaret sraret asrret sarret rrsaet rrsaet rsraet srraet rsraet srraet arsret rasret asrret sarret rsaret sraret raesrt aresrt reasrt erasrt aersrt earsrt rasert arsert rsaert sraert asrert sarert resart ersart rseart sreart esrart serart aesrrt easrrt aserrt saerrt esarrt searrt rresat rresat rersat errsat rersat errsat rrseat rrseat rsreat srreat rsreat srreat resrat ersrat rserat srerat esrrat serrat resrat ersrat rserat srerat esrrat serrat aresrt raesrt aersrt earsrt reasrt erasrt arsert rasert asrert sarert rsaert sraert aesrrt easrrt aserrt saerrt esarrt searrt resart ersart rseart sreart esrart serart rarets arrets rraets rraets arrets rarets raerts arerts rearts erarts aerrts earrts rreats rreats rerats errats rerats errats arerts raerts aerrts earrts rearts erarts rartes arrtes rrates rrates arrtes rartes ratres artres rtares trares atrres tarres rrtaes rrtaes rtraes trraes rtraes trraes artres ratres atrres tarres rtares trares raetrs aretrs reatrs eratrs aertrs eartrs raters arters rtaers traers atrers tarers retars ertars rtears trears etrars terars aetrrs eatrrs aterrs taerrs etarrs tearrs rretas rretas rertas errtas rertas errtas rrteas rrteas rtreas trreas rtreas trreas retras ertras rteras treras etrras terras retras ertras rteras treras etrras terras aretrs raetrs aertrs eartrs reatrs eratrs arters raters atrers tarers rtaers traers aetrrs eatrrs aterrs taerrs etarrs tearrs retars ertars rtears trears etrars terars rarste arrste rraste rraste arrste rarste rasrte arsrte rsarte srarte asrrte sarrte rrsate rrsate rsrate srrate rsrate srrate arsrte rasrte asrrte sarrte rsarte srarte rartse arrtse rratse rratse arrtse rartse ratrse artrse rtarse trarse atrrse tarrse rrtase rrtase rtrase trrase rtrase trrase artrse ratrse atrrse tarrse rtarse trarse rastre arstre rsatre sratre asrtre sartre ratsre artsre rtasre trasre atrsre tarsre rstare srtare rtsare trsare strare tsrare astrre satrre atsrre tasrre starre tsarre rrstae rrstae rsrtae srrtae rsrtae srrtae rrtsae rrtsae rtrsae trrsae rtrsae trrsae rstrae srtrae rtsrae trsrae strrae tsrrae rstrae srtrae rtsrae trsrae strrae tsrrae arstre rastre asrtre sartre rsatre sratre artsre ratsre atrsre tarsre rtasre trasre astrre satrre atsrre tasrre starre tsarre rstare srtare rtsare trsare strare tsrare raestr arestr reastr erastr aerstr earstr rasetr arsetr rsaetr sraetr asretr saretr resatr ersatr rseatr sreatr esratr seratr aesrtr easrtr asertr saertr esartr seartr raetsr aretsr reatsr eratsr aertsr eartsr ratesr artesr rtaesr traesr atresr taresr retasr ertasr rteasr treasr etrasr terasr aetrsr eatrsr atersr taersr etarsr tearsr raster arster rsater srater asrter sarter ratser artser rtaser traser atrser tarser rstaer srtaer rtsaer trsaer straer tsraer astrer satrer atsrer tasrer starer tsarer restar erstar rsetar sretar esrtar sertar retsar ertsar rtesar tresar etrsar tersar rstear srtear rtsear trsear strear tsrear estrar setrar etsrar tesrar sterar tserar aestrr eastrr asetrr saetrr esatrr seatrr aetsrr eatsrr atesrr taesrr etasrr teasrr asterr saterr atserr taserr staerr tsaerr estarr setarr etsarr tesarr stearr tsearr rresta rresta rersta errsta rersta errsta rrseta rrseta rsreta srreta rsreta srreta resrta ersrta rserta srerta esrrta serrta resrta ersrta rserta srerta esrrta serrta rretsa rretsa rertsa errtsa rertsa errtsa rrtesa rrtesa rtresa trresa rtresa trresa retrsa ertrsa rtersa trersa etrrsa terrsa retrsa ertrsa rtersa trersa etrrsa terrsa rrstea rrstea rsrtea srrtea rsrtea srrtea rrtsea rrtsea rtrsea trrsea rtrsea trrsea rstrea srtrea rtsrea trsrea strrea tsrrea rstrea srtrea rtsrea trsrea strrea tsrrea restra erstra rsetra sretra esrtra sertra retsra ertsra rtesra tresra etrsra tersra rstera srtera rtsera trsera strera tsrera estrra setrra etsrra tesrra sterra tserra restra erstra rsetra sretra esrtra sertra retsra ertsra rtesra tresra etrsra tersra rstera srtera rtsera trsera strera tsrera estrra setrra etsrra tesrra sterra tserra arestr raestr aerstr earstr reastr erastr arsetr rasetr asretr saretr rsaetr sraetr aesrtr easrtr asertr saertr esartr seartr resatr ersatr rseatr sreatr esratr seratr aretsr raetsr aertsr eartsr reatsr eratsr artesr ratesr atresr taresr rtaesr traesr aetrsr eatrsr atersr taersr etarsr tearsr retasr ertasr rteasr treasr etrasr terasr arster raster asrter sarter rsater srater artser ratser atrser tarser rtaser traser astrer satrer atsrer tasrer starer tsarer rstaer srtaer rtsaer trsaer straer tsraer aestrr eastrr asetrr saetrr esatrr seatrr aetsrr eatsrr atesrr taesrr etasrr teasrr asterr saterr atserr taserr staerr tsaerr estarr setarr etsarr tesarr stearr tsearr restar erstar rsetar sretar esrtar sertar retsar ertsar rtesar tresar etrsar tersar rstear srtear rtsear trsear strear tsrear estrar setrar etsrar tesrar sterar tserar
Note: these 'words' (valid or invalid) are all the permutations of the word rarest. These words are obtained by scrambling the letters in rarest.