[b]"Help! Is this a syntax error in grammar, or am I missing something?"[/b] Alternatively, if you prefer a slightly

Lol, I had the same brain freeze last week! It’s *"loudly"*—adverbs modify verbs, adjectives modify nouns.

Not a full-blown syntax error in grammar, but it’s one of those things that sounds wrong when you hear it.

For quick fixes, I just google "adjective vs. adverb checker." Works like a charm.