Also spelled dunder-headed
adj
Freq #250681
Meanings
-
1
adj
old-fashioned: very stupid or foolish
The dunderheaded scheme failed because no one had checked the basic figures.
Thesaurus
Synonyms
More
obtuse
Etymology
Formed from dunder + headed, alongside dunderhead, 'a stupid person.' Dunder may be related to an obsolete Scots word for a loud or resounding noise, though the compound's deeper development is uncertain.