Brainiac and Blockhead

Opposite meaning words

Brainiac noun - A very smart person.

Usage example: a techie who always has to have the latest gadget that the brainiacs in Silicon Valley have cooked up

Show all Definitions

Blockhead is an antonym for brainiac.

Blockhead noun - A stupid person.

Show all Definitions

Brainiac is an antonym for blockhead.

Nearby Word: block

Cite this Source

Blockhead and Brainiac. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/brainiac/blockhead

Brainiac & Blockhead. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/brainiac/blockhead>.

Blockhead or Brainiac. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/brainiac/blockhead.

Google Ngram Viewer shows how "brainiac" and "blockhead" have occurred on timeline