It literally means without a rival, and it also is the name for a dessert of layered meringue, buttered cream and cashews. Though the dessert is by far the best version i have eaten, the dishes in the restaurant are just okay, nothing extra ordinary and can not even rival some places that i know who can offer the same fare.
The tomato basil soup with cheddar perhaps is a standout but the grilled baby back ribs or the salad nicoise was just your regular fare. (Serious Panda says the salad needed a bit more flavor to the dressing).
Hmmm. Oh well back to the desserts then =)