Thickhead

noun, slang

noun, slang ·2 syllables ·Common ·High school level

Definitions

Noun
  1. 1
    A stupid person. informal

    "Near-synonyms: bonehead, numskull; see also Thesaurus:fool, Thesaurus:idiot"

  2. 2
    Australian and southeastern Asian birds with a melodious whistling call wordnet
  3. 3
    Any of several species of Australian songbirds of the genus Pachycephala.

Example

More examples

"Near-synonyms: bonehead, numskull; see also Thesaurus:fool, Thesaurus:idiot"

Etymology

From thick + head. Compare West Frisian dikharsens (“blockhead”, literally “thick brain”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.