shyest hsyest syhest yshest hysest yhsest sheyst hseyst sehyst eshyst hesyst ehsyst syehst ysehst seyhst esyhst yeshst eyshst hyesst yhesst heysst ehysst yehsst eyhsst shyset hsyset syhset yshset hysset yhsset shsyet hssyet sshyet sshyet hssyet shsyet syshet ysshet ssyhet ssyhet ysshet syshet hysset yhsset hsyset shyset yshset syhset shesyt hsesyt sehsyt eshsyt hessyt ehssyt shseyt hsseyt ssheyt ssheyt hsseyt shseyt seshyt esshyt ssehyt ssehyt esshyt seshyt hessyt ehssyt hsesyt shesyt eshsyt sehsyt syesht ysesht seysht esysht yessht eyssht syseht ysseht ssyeht ssyeht ysseht syseht sesyht essyht sseyht sseyht essyht sesyht yessht eyssht ysesht syesht esysht seysht hyesst yhesst heysst ehysst yehsst eyhsst hysest yhsest hsyest shyest yshest syhest hesyst ehsyst hseyst sheyst eshyst sehyst yeshst eyshst ysehst syehst esyhst seyhst shyets hsyets syhets yshets hysets yhsets sheyts hseyts sehyts eshyts hesyts ehsyts syehts ysehts seyhts esyhts yeshts eyshts hyests yhests heysts ehysts yehsts eyhsts shytes hsytes syhtes yshtes hystes yhstes shtyes hstyes sthyes tshyes htsyes thsyes sythes ysthes styhes tsyhes ytshes tyshes hytses yhtses htyses thyses ythses tyhses shetys hsetys sehtys eshtys hestys ehstys shteys hsteys stheys tsheys htseys thseys sethys esthys stehys tsehys etshys teshys hetsys ehtsys htesys thesys ethsys tehsys syeths yseths seyths esyths yesths eysths sytehs ystehs styehs tsyehs ytsehs tysehs setyhs estyhs steyhs tseyhs etsyhs tesyhs yetshs eytshs yteshs tyeshs etyshs teyshs hyetss yhetss heytss ehytss yehtss eyhtss hytess yhtess htyess thyess ythess tyhess hetyss ehtyss hteyss theyss ethyss tehyss yethss eythss ytehss tyehss etyhss teyhss shyste hsyste syhste yshste hysste yhsste shsyte hssyte sshyte sshyte hssyte shsyte syshte ysshte ssyhte ssyhte ysshte syshte hysste yhsste hsyste shyste yshste syhste shytse hsytse syhtse yshtse hystse yhstse shtyse hstyse sthyse tshyse htsyse thsyse sythse ysthse styhse tsyhse ytshse tyshse hytsse yhtsse htysse thysse ythsse tyhsse shstye hsstye sshtye sshtye hsstye shstye shtsye hstsye sthsye tshsye htssye thssye ssthye ssthye stshye tsshye stshye tsshye hstsye shtsye htssye thssye sthsye tshsye systhe yssthe ssythe ssythe yssthe systhe sytshe ystshe styshe tsyshe ytsshe tysshe sstyhe sstyhe stsyhe tssyhe stsyhe tssyhe ystshe sytshe ytsshe tysshe styshe tsyshe hystse yhstse hsytse shytse yshtse syhtse hytsse yhtsse htysse thysse ythsse tyhsse hstyse shtyse htsyse thsyse sthyse tshyse ysthse sythse ytshse tyshse styhse tsyhse shesty hsesty sehsty eshsty hessty ehssty shsety hssety sshety sshety hssety shsety seshty esshty ssehty ssehty esshty seshty hessty ehssty hsesty shesty eshsty sehsty shetsy hsetsy sehtsy eshtsy hestsy ehstsy shtesy hstesy sthesy tshesy htsesy thsesy sethsy esthsy stehsy tsehsy etshsy teshsy hetssy ehtssy htessy thessy ethssy tehssy shstey hsstey sshtey sshtey hsstey shstey shtsey hstsey sthsey tshsey htssey thssey ssthey ssthey stshey tsshey stshey tsshey hstsey shtsey htssey thssey sthsey tshsey sesthy essthy ssethy ssethy essthy sesthy setshy estshy steshy tseshy etsshy tesshy sstehy sstehy stsehy tssehy stsehy tssehy estshy setshy etsshy tesshy steshy tseshy hestsy ehstsy hsetsy shetsy eshtsy sehtsy hetssy ehtssy htessy thessy ethssy tehssy hstesy shtesy htsesy thsesy sthesy tshesy esthsy sethsy etshsy teshsy stehsy tsehsy syesth ysesth seysth esysth yessth eyssth syseth ysseth ssyeth ssyeth ysseth syseth sesyth essyth sseyth sseyth essyth sesyth yessth eyssth ysesth syesth esysth seysth syetsh ysetsh seytsh esytsh yestsh eystsh sytesh ystesh styesh tsyesh ytsesh tysesh setysh estysh steysh tseysh etsysh tesysh yetssh eytssh ytessh tyessh etyssh teyssh systeh yssteh ssyteh ssyteh yssteh systeh sytseh ystseh styseh tsyseh ytsseh tysseh sstyeh sstyeh stsyeh tssyeh stsyeh tssyeh ystseh sytseh ytsseh tysseh styseh tsyseh sestyh esstyh ssetyh ssetyh esstyh sestyh setsyh estsyh stesyh tsesyh etssyh tessyh ssteyh ssteyh stseyh tsseyh stseyh tsseyh estsyh setsyh etssyh tessyh stesyh tsesyh yestsh eystsh ysetsh syetsh esytsh seytsh yetssh eytssh ytessh tyessh etyssh teyssh ystesh sytesh ytsesh tysesh styesh tsyesh estysh setysh etsysh tesysh steysh tseysh hyests yhests heysts ehysts yehsts eyhsts hysets yhsets hsyets shyets yshets syhets hesyts ehsyts hseyts sheyts eshyts sehyts yeshts eyshts ysehts syehts esyhts seyhts hyetss yhetss heytss ehytss yehtss eyhtss hytess yhtess htyess thyess ythess tyhess hetyss ehtyss hteyss theyss ethyss tehyss yethss eythss ytehss tyehss etyhss teyhss hystes yhstes hsytes shytes yshtes syhtes hytses yhtses htyses thyses ythses tyhses hstyes shtyes htsyes thsyes sthyes tshyes ysthes sythes ytshes tyshes styhes tsyhes hestys ehstys hsetys shetys eshtys sehtys hetsys ehtsys htesys thesys ethsys tehsys hsteys shteys htseys thseys stheys tsheys esthys sethys etshys teshys stehys tsehys yesths eysths yseths syeths esyths seyths yetshs eytshs yteshs tyeshs etyshs teyshs ystehs sytehs ytsehs tysehs styehs tsyehs estyhs setyhs etsyhs tesyhs steyhs tseyhs
Note: these 'words' (valid or invalid) are all the permutations of the word shyest. These words are obtained by scrambling the letters in shyest.