boneheaded C2+ Topic:Describing Qualities US /ˈboʊnˌhɛdɪd/ UK /ˈbəʊnˌhɛdɪd/ See IPA manual Meanings 1 adj foolish or stupid Skipping the backup was a boneheaded mistake. Thesaurus Synonyms 1 adj · foolish or stupid stupidfoolishidioticdimobtusedensewitless ↔ Opposites cleversmartbrilliantintelligent Word family Related forms boneheadbonehead Etymology AI details From bonehead + -ed. Bonehead is a compound of bone (from Old English bān) and head, expressing the idea of a skull lacking brains. bān Old English *bainą Proto-Germanic View etymology graph -> Topics Describing Qualities Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # boneheaded **Type:** Word **Level:** C2+ **Part of speech:** adj **IPA (US):** /ˈboʊnˌhɛdɪd/ **IPA (UK):** /ˈbəʊnˌhɛdɪd/ ## Meanings 1. foolish or stupid ## Examples - Skipping the backup was a boneheaded mistake. ## Synonyms - stupid - foolish - idiotic - dim - obtuse - dense - witless ## Antonyms - clever - smart - brilliant - intelligent ## Related Forms - bonehead - bone - head ## Roots and Affixes - Root: bān - Root: *bainą ## Etymology From bonehead + -ed. Bonehead is a compound of bone (from Old English bān) and head, expressing the idea of a skull lacking brains. ## AI Etymology Boneheaded comes from bonehead + -ed. Bonehead is a compound of bone (from Old English bān) and head, expressing the idea of a skull lacking brains. The historical trail runs through Old English bān and Proto-Germanic *bainą. Morphologically, the surface form is analyzable into prefixes, suffixes, compounds, or participial endings that carry part of the history. In modern use it means foolish or stupid. Related forms include bonehead, bone, head. ## Topics - Describing Qualities - Word Formation & Derivatives markdown