Phrase guide

bold as brass

adj · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

adj

Meaning 1

Very bold; very forward or impudent.

Definition source: English Wiktionary via Wiktextract

Qualifier: simile

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Popularly supposed to have originated in reference to Brass Crosby, Lord Mayor of London in the 1770s, who was bold enough to defy the British parliament. However, this origin theory is dismissed by some as bogus.