dunderhead

Ninny is a related term of dunderhead.

As nouns the difference between ninny and dunderhead

is that ninny is a silly or foolish person while dunderhead is a stupid person; a dunce.

As nouns the difference between dunderhead and clot

is that dunderhead is a stupid person; a dunce while clot is a solidified mass of blood.

As a verb clot is

to form into a clot or mass.

Dunderhead is a related term of dolt.

As nouns the difference between dunderhead and dolt

is that dunderhead is a stupid person; a dunce while dolt is (pejorative) a stupid person; a blockhead or dullard.

As a verb dolt is

(obsolete) to behave foolishly.

Duffer is a related term of dunderhead.

As nouns the difference between duffer and dunderhead

is that duffer is (male) dove, cock pigeon while dunderhead is a stupid person; a dunce.

Chump is a related term of dunderhead.

As nouns the difference between chump and dunderhead

is that chump is (colloquial|pejorative) an incompetent person, a blockhead; a loser while dunderhead is a stupid person; a dunce.

Dunderhead is a related term of halfwit.

As nouns the difference between dunderhead and halfwit

is that dunderhead is a stupid person; a dunce while halfwit is (informal) someone lacking in intelligence.

As nouns the difference between dunderhead and idiot

is that dunderhead is a stupid person; a dunce while idiot is a person of low general intelligence.

Dunderhead is a related term of galah.

As nouns the difference between dunderhead and galah

is that dunderhead is a stupid person; a dunce while galah is a pink and grey species of cockatoo, eolophus roseicapilla , native to australia.

Simpleton is a related term of dunderhead.

As nouns the difference between simpleton and dunderhead

is that simpleton is (pejorative) a simple person lacking common sense while dunderhead is a stupid person; a dunce.

As nouns the difference between dunderhead and nitwit

is that dunderhead is a stupid person; a dunce while nitwit is a scatterbrained or stupid person.