Found 2 items, similar to dunderhead.
English → English (WordNet)
Definition: dunderhead
dunderhead
n : these words are used to express a low opinion of someone's
intelligence [syn:
dunce,
numskull,
blockhead,
bonehead,
lunkhead,
hammerhead,
knucklehead,
loggerhead,
muttonhead,
shithead,
fuckhead]
English → English (gcide)
Definition: Dunderhead
Dunderhead
\Dun"der*head`\, n. [Prov. Eng. also dunderpoll, from
dunder, same as thunder.]
A dunce; a numskull; a blockhead. --Beau. & Fl.
[1913 Webster]