Following are all the ninnyhammer like words, in the list below.
NINNY
100% like ninnyhammer
NODDY
100% like ninnyhammer
NIDDICOCK
100% like ninnyhammer
NIDGET
100% like ninnyhammer
NINCOMPOOP
100% like ninnyhammer
NONNY
100% like ninnyhammer
TOMNODDY
100% like ninnyhammer
NOBBER
100% like ninnyhammer
NANA
100% like ninnyhammer
FEATHERHEAD
100% like ninnyhammer
JINNET
100% like ninnyhammer
NICKY-TAM
100% like ninnyhammer
NITWIT
100% like ninnyhammer
JACKANINNY
100% like ninnyhammer
NINCOM
100% like ninnyhammer
KNUCKLEHEAD
100% like ninnyhammer
NUTHEAD
100% like ninnyhammer
NOODLEHEAD
100% like ninnyhammer
NUPSON
100% like ninnyhammer
NEDDY
100% like ninnyhammer
NUFFY
100% like ninnyhammer
JOBBERNOWL
100% like ninnyhammer
SCHMENDRICK
100% like ninnyhammer
NOODLE
100% like ninnyhammer
FOOL
100% like ninnyhammer
NUMBWIT
100% like ninnyhammer
TURNIP HEAD
100% like ninnyhammer
HALFWIT
100% like ninnyhammer
STUPID
100% like ninnyhammer
DICKWHACKER
100% like ninnyhammer
GAWK
100% like ninnyhammer
WITLESS WONDER
100% like ninnyhammer
DULLWIT
100% like ninnyhammer
NIG-NOG
100% like ninnyhammer
JUGGINS
100% like ninnyhammer
SAPHEAD
100% like ninnyhammer
FUNGE
100% like ninnyhammer
NUTCAKE
100% like ninnyhammer
DUMBNUT
100% like ninnyhammer
NUTBALL
100% like ninnyhammer
NICKUMPOOP
100% like ninnyhammer
SNIPE
100% like ninnyhammer
TOMFOOL
100% like ninnyhammer
MUGGINS
100% like ninnyhammer
SILLYHEAD
100% like ninnyhammer
NELLY
100% like ninnyhammer
SPANNER
100% like ninnyhammer
GABY
100% like ninnyhammer
FOOLIGAN
100% like ninnyhammer
SILLY
100% like ninnyhammer
SPOONY
100% like ninnyhammer
NIMROD
100% like ninnyhammer
DUNCEHEAD
100% like ninnyhammer
DULLARD
100% like ninnyhammer
LUNKHEAD
100% like ninnyhammer
LUNK
100% like ninnyhammer
FLEABRAIN
100% like ninnyhammer
DOINK
100% like ninnyhammer
FUZZNUT
100% like ninnyhammer
FONDLING
100% like ninnyhammer
MAFFLING
100% like ninnyhammer
SAWNEY
100% like ninnyhammer
NIMNOD
100% like ninnyhammer
MENTAL MIDGET
100% like ninnyhammer
PLONKER
100% like ninnyhammer
PUZZLEWIT
100% like ninnyhammer
BANIAK
100% like ninnyhammer
PRANNY
100% like ninnyhammer
NIGNOG
100% like ninnyhammer
HODDYDODDY
100% like ninnyhammer
KNOBBER
100% like ninnyhammer
DOODLE
100% like ninnyhammer
NUMSKULL
100% like ninnyhammer
NUMPTY
100% like ninnyhammer
NIDDERLING
100% like ninnyhammer
DOUGHNUT
100% like ninnyhammer
NUTSO
100% like ninnyhammer
NING-NONG
100% like ninnyhammer
SILLY GOOSE
100% like ninnyhammer
NICKUM
100% like ninnyhammer
BLISS NINNY
100% like ninnyhammer
FUZZNUTS
100% like ninnyhammer
NUMPS
100% like ninnyhammer
SMELT
100% like ninnyhammer
CLOWN
100% like ninnyhammer
SPUD HEAD
100% like ninnyhammer
CLUMSE
100% like ninnyhammer
TWIT
100% like ninnyhammer
GUFFIN
100% like ninnyhammer
BOBCHIN
100% like ninnyhammer
PICKLEHEAD
100% like ninnyhammer
DINGLEBERRY
100% like ninnyhammer
NIPPER
100% like ninnyhammer
SOFTHEAD
100% like ninnyhammer
SILLYKINS
100% like ninnyhammer
KNUFF
100% like ninnyhammer
NICKY NACKY NOO
100% like ninnyhammer
CHUCKLEHEAD
100% like ninnyhammer
NUT JOB
100% like ninnyhammer
COCKAMAMIE
100% like ninnyhammer