Fettuccinis are a type of pasta that is often used in Italian cuisine. If you're looking for synonyms for fettuccinis, you might consider some of the other pasta shapes that are commonly used in Italian cooking. For example, you might use penne, rigatoni, or tortellini instead. Other options might include linguine, spaghetti, or tagliatelle. Each of these pasta shapes has its own distinct flavor and texture, so you'll want to choose the one that best suits your particular dish. Whether you're making a simple marinara sauce or a more complex alfredo, there's sure to be a synonym for fettuccinis that will work perfectly.