The first name that came to mind was Sylvie. It's close to the popular Sophie, but it is still unique, easy to pronounce/spell, and not likely to be one of many in any classroom. In terms of nicknames, people will give their own term of endearments to any name, so I feel like nicknames are unavoidable. My DS's name is Bram. You would assume that there would no possible nickname for this one syllable name, but he is constantly called Brammie or Brammer by friends/family members/teachers. It is what it is :) Good luck with the name search.
4) Nickname distaste. Both of us have a huge distaste for nicknames. The only name we could agree on, Adelaide, had to go out the window because my family insisted on calling her Addie.
I would NOT let your family's nickname tendancies dissuade you from a name you both love and agree on. If you call her Adelaide and only Adelaide, that will be her name, even if grandma calls her "Addy" for a bit, I guarantee it will end especially if you ask "please don't call her Addy" multiple times. For what it's worth, I LOVE the name Adelaide but couldn't get it past my husband for my daughter. We ended up with a "Scarlett" for our first which is pretty nickname-proof. Good luck!
I feel like the posters before me had the right idea - classic sounding names that are familiar without being over used. Here are some of my favorites:
Alice (I know you thought this was popular, but I think it's lovely)
Good luck with finding a name that you love for your little one!
I think you are looking for short, classic names. Short so they don't get nicknamed and classic because that sounds like your style. I apologize if I steal other people's idea. So far I like from other people's suggestions Bonnie, Blythe, Ivy, Ada, Cora, Iris, Lucy, Laura, Nina and Vera. Ok so now my own ideas: Sibyl, Rose, Deirdre, Eve, Ruth, June, Grace, Hope, Sarah, Cara, Amy, Anne, Ingrid, Irene, Inez, Ellen, Doris, Martha, Carol, Jane, Jill, Jan, Pearl, and Madge. Good Luck!
Celia is pretty nickname proof (Celie?) and it has the same letters a Alice.
Ivy is a classic, really to short for a nickname.
Ada is a personal favorite, different pronounciation from Adelaide/Adele.
Nora short and sweet.
Adele (less likely to be nicknamed but similar to Adelaide, sort of)
Silvia (LOVE this name -- very classic and beautiful, but already a name in our family, so we can't use it)
Sylvie (Silvia with a more French feel; similar to Sophie)
Those are just the names that popped into my head, but I'm not very good at this. pps have given you lots of great names to think about. I just wanted to sound off about Adelaide, too -- this is YOUR child, not your parents' child. If you and your husband don't want her called Addie, then tell them you won't be calling her that and you'd prefer if they also didn't call her that. Your family will be the toughest sell regarding the nickname thing. They will feel a special connection and may instinctively want to give her a nickname. But your friends and her teachers will never call her Addie unless they hear it from you first (or unless she decides that's what she wants to go by). Adelaide is a lovely and unique but also classic/vintage name. If you both love it and can't find anything else you love, it would be such a shame to throw it away!
I feel the same way about nn's. I'd rather use full names and we do for our son. :)
I love many ideas on the thread. How about Clara? Apologies if I skimmed too quickly and did not see that someone else has already proposed it.