Thanks everyone. I know formal nights are optional. What I am trying to figure out is whether we'll look dumb / mismatched if I wear a sequined dress & he is not in a tux. My Q has everything to do w/ fashion and nothing to do with NCL's policies / dress code.
NCL's policy is relevant, since a lot of couples don't even try to look like they are together! I've seen guys in t-shirts and jeans escorting ladies in formal wear and no one even blinks. My DH won't wear a tie unless I threaten to strangle him with it, so on NCL, I let it go. Don't worry about what others will think. They will be too busy having fun to care about how you look.
My wife and I have always dressed up for formal night but I don't own a tux. I have most often worn a dark suit with a crisp white shirt and a conservative tie that cordinates well with the suit. This combo makes the suit look more formal. And, everyone else is right, there will be so many people wearing so many different things (some matching and some not) just look good to yourself and have fun!
Trish i understand where you are coming from, not to worry. I have worn long sequined dressess and short sparkly cocktail dressess and my DH has always worn a dark suit with a crisp white shirt, silk tie, dress shoes and he has never felt under nor have i felt overdressed being together
If he had a tux, I wouldn't ask the Q; I just would have packed the tux! Santa can't really afford one at this point & we're on NCL so renting is not convenient.
I agree completely with Donna's reply.
That said, tuxedos are pretty affordable now. J. C. Penney is selling the jacket and pants, in their Stafford brand, for $99. The same store has pleated tuxedo shirts and a kit of accessories (tie, cummerbund, studs, etc.), as a kit, for about $30 IIRC, so you can put together a complete outfit for about $160. The quality is pretty good, too.