What is the lonest word ever?

Answer 1

methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanylgluutaminylleucyllysylglutamylarginyllysylglutamyliute88ye8ry5t04y58ty5498ty98y698y598y98y5908y6t8y56ty856uy986y98y6985 y48 yn8y98y98y98y987yt908yt908yt98y8u85409t7q6yr4W8EU-YR80TY[RUTRS8UTRUETRRETRUYETUYHUHRETRUHITRTRTRYTRTUIDFSHRFYNHRGSBDUYBFUOYIVFDUHBFVUYHFGFSGUIFUIGIUFUIHFIHIUHUFIUFIHFUIHFUIHFUIFSHUIHFDUIHFUIHFUIHFUHFUIFSHUIHFUDSFUFHSUUFHFUIHFUHFUHUFHUFHUFHFUFUHFUHFUIDSFHUHUTFI OFAGDUGFISYFDTUFTYDFDSTYLUGHJDRF86

Answer 2

The longest word is 189,819 letters long (too long for this answer box) but is available to see on Google.

Also it's disputed whether it's a word at all because it's not used in dictionaries, but it's used in the English language.