foolish; fatuous; witless.

Origin of fatheaded

1500–10, for literal sense; fathead + -ed3
Related formsfat·head·ed·ly, adverbfat·head·ed·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for fatheaded

Historical Examples of fatheaded

  • To call your Sovereign a fatheaded slob in a newsfac might be considered bad taste, but it isn't illegal.

    The Unnecessary Man

    Gordon Randall Garrett

  • Tuppy's fatheaded words were still rankling in my bosom as I went up to my room.

    Right Ho, Jeeves

    P. G. Wodehouse