fathead

1 of 2

noun (1)

fat·head ˈfat-ˌhed

Synonyms of fathead next

: a stupid person

fatheaded

ˈfat-ˈhe-dəd

adjective

fatheadedly adverb

fatheadedness noun

fatheadedness

2 of 2

noun (2)

fat·head·ed·ness

plural -es

: the quality or state of being fatheaded

Synonyms of fathead

Relevance

Noun (1)

See All Synonyms & Antonyms in Thesaurus

Examples of fathead in a Sentence

Noun (1) Don't be such a fathead! so who's the fathead who messed around with my movie collection?

Word History

First Known Use

Noun (1)

1842, in the meaning defined above

Time Traveler

The first known use of fathead was in 1842

See more words from the same year

Browse Nearby Words

fath

fathead

fatheaded

See all Nearby Words

Cite this Entry

Style

“Fathead.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fathead. Accessed 17 Jun. 2026.

Copy Citation

Kids Definition

fathead

noun

fat·head ˈfat-ˌhed

: a stupid person

Popular in Grammar & Usage

'Canceled' or 'cancelled'?

5 Verbal Slip Ups and Language Mistakes

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

The Difference Between 'i.e.' and 'e.g.'

Popular in Wordplay

fathead

noun (1)

noun (2)

Synonyms of fathead

Examples of fathead in a Sentence

Word History

Browse Nearby Words

Cite this Entry

Kids Definition

More from Merriam-Webster

Word of the Day

wifty