Yes, ‘baddest’ is indeed a word. It is often used informally in contemporary English, particularly in slang and popular culture, to signify the superlative form of ‘bad.’ While traditional grammar rules suggest using ‘worst’ as the superlative of ‘bad,’ ‘baddest’ has emerged through linguistic evolution, especially in hip-hop and youth culture.
In context, saying someone is the ‘baddest’ often implies they are the most impressive, tough, or skillful in a particular area. For example, someone might say, ‘She is the baddest singer in town,’ highlighting their talent and presence. It’s important to note that because it’s slang, it might not be appropriate in all settings, so consider your audience when using it.