There is no single English word that meets the critera without repeating letters. Here are the options if you repeat letters.
acceded, accidia, accidie, aecidia, alcaide, alcalde, alidade, allelic, caddice, caddied, cadelle, calicle, cedilla, cicadae, daddled, dallied, decadal, decided, deicide, dialled, diallel, diddled, icicled
There's no seven letter word, here are the possible six letter words:atonernatronnonartornatetannertonner
A seven letter word from the letters in 'appliance' is pelican.
6-letter word: sneeze7-letter word: sneezed
detract
Pendant.
Dandles
That's vicious.
gambols
amusing
dogears
'VALANCE'
clothes