Blowhards are individuals who tend to talk excessively and boast about their achievements. There are many synonyms for the word blowhard, including windbag, braggart, gasbag, show-off, blowfish, loudmouth, bragger, and grandstander. Each of these synonyms describes someone who is overly confident and seeks attention through excessive speaking. Blowhards often dominate conversations, interrupt others, and make unrealistic claims about their abilities or accomplishments. While blowhards can be entertaining in small doses, their behavior can quickly become annoying and disruptive. It's important to be mindful of how much you're talking and to listen actively to others in a conversation.