What a blowhard.
Source: tatoeba (6710514)
Ranked by relevance and common usage.
Keep "blowhard" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
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Choose a synonym only if it keeps the core idea of "blowhard" intact in the sentence you are editing.
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Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
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If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "blowhard" or choose a simpler alternative from the closest-match group.
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7 total sentences available.
What a blowhard.
Source: tatoeba (6710514)
You're just a blowhard.
Source: tatoeba (10570839)
The merchants are the most ultra Secessionists, one of the secret springs of action among this class being the heavy indebtedness owing to Eastern creditors. Some men of Northern origin were the most rabid. A "blow-hard," named JAMES PATTERSON, of Augusta, Jackson County, was originally from Pennsylvania. He stumped the county and was elected to the Convention, and cast his vote for secession.
Source: wiktionary
[T]he loud-mouthed blowhard seemed just the man to flinch when real danger confronted him; […]
Source: wiktionary
Showing 4 of 7 available sentences.
Closest matches include boaster, braggart, big mouth, blow, blow off.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.