Following are all the idiotish like words, in the list below.
LUNKHEADED
100% like idiotish
IMBECILIC
100% like idiotish
IDIOT
100% like idiotish
NINCOMPOOPISH
100% like idiotish
IDIOTIC
100% like idiotish
LUNKISH
100% like idiotish
CHUMPISH
100% like idiotish
LACKWITTED
100% like idiotish
FOOLISH
100% like idiotish
LAMEBRAINED
100% like idiotish
IDIOTICAL
100% like idiotish
LACKWIT
100% like idiotish
IDIOTISTIC
100% like idiotish
MUDDLEBRAINED
100% like idiotish
ASSISH
100% like idiotish
IGNORANT
100% like idiotish
DOTARDLY
100% like idiotish
FATUOUS
100% like idiotish
TOMFOOLISH
100% like idiotish
FOOL-HEARTED
100% like idiotish
WEAK-MINDED
100% like idiotish
INSIPIENT
100% like idiotish
DUNCY
100% like idiotish
MULLET-HEADED
100% like idiotish
INSENSATE
100% like idiotish
NITWITTED
100% like idiotish
YAHOOISH
100% like idiotish
DOTISH
100% like idiotish
MORONIC
100% like idiotish
NUMPTYISH
100% like idiotish
ASININE
100% like idiotish
CLODDISH
100% like idiotish
SIMPLE
100% like idiotish
FATUITOUS
100% like idiotish
DAFTLIKE
100% like idiotish
BRAINLESS
100% like idiotish
NINNYISH
100% like idiotish
WISDOMLESS
100% like idiotish
DUFFERISH
100% like idiotish
SOTTISH
100% like idiotish
ADDLE-BRAINED
100% like idiotish
DUNDERHEADED
100% like idiotish
DESIPIENT
100% like idiotish
SLIGHT
100% like idiotish
BUMBLEHEADED
100% like idiotish
SLACKERISH
100% like idiotish
CHOWDERHEADED
100% like idiotish
INANE
100% like idiotish
WOODENHEADED
100% like idiotish
NICE
100% like idiotish
INFANTILE
100% like idiotish
DAFFISH
100% like idiotish
TARDISH
100% like idiotish
EMPTY-HEADED
100% like idiotish
NIMWITTED
100% like idiotish
UNWISE
100% like idiotish
RIDICULOUS
100% like idiotish
DUMB
100% like idiotish
SILLY
100% like idiotish
UNASINOUS
100% like idiotish
LUNKY
100% like idiotish
FOND
100% like idiotish
DUMPISH
100% like idiotish
SIMPLE-MINDED
100% like idiotish
STUPID
100% like idiotish
DIM-WITTED
100% like idiotish
INSANE
100% like idiotish
CLODPATED
100% like idiotish
UNDERWITTED
100% like idiotish
LOAFERISH
100% like idiotish
LUDICROUS
100% like idiotish
UNKNOWLEDGEABLE
100% like idiotish
SIMPLEMINDED
100% like idiotish
INFATUATED
100% like idiotish
OAFISH
100% like idiotish
SINGLE
100% like idiotish
IDLE
100% like idiotish
OAFLIKE
100% like idiotish
CLOWNISH
100% like idiotish
BUNGLING
100% like idiotish
PUERILE
100% like idiotish
IMBECILE
100% like idiotish
DUNDERPATED
100% like idiotish
FEEBLE-BRAINED
100% like idiotish
BLUNT-WITTED
100% like idiotish
ILLOGICAL
100% like idiotish
DULL-MINDED
100% like idiotish
SEMISTUPID
100% like idiotish
LOSERISH
100% like idiotish
LIGHT-HEADED
100% like idiotish
DULLARDLY
100% like idiotish
FOOLHARDY
100% like idiotish
DULL-HEADED
100% like idiotish
RANDUMB
100% like idiotish
BLOCKISH
100% like idiotish
LUBBERLY
100% like idiotish
CONCEITLESS
100% like idiotish
INFATUATE
100% like idiotish
UNWITTY
100% like idiotish
DEMENTED
100% like idiotish