Hi. So brace yourselves but bear with me as the following names are quite on the unique side. Please rate them on a scale of 1-10. Thanks.?

Lol, I love unique names 👍

Accalia 9/10
Doriana 6/10
Elowyn 7/10
Fiona 1/10 (never liked this name)
Guinevere 6/10
Isadora 8/10
Kassandra 1/10 (never liked this name either)
Lorelei 8/10
Nerissa 10/10 (always loved this name)
Olwyn 1/10
Rowelia 5/10
Ulyssa 6/10
Vivien 7/10
Yleanora 2/10
Zara 9/10

I lost IQ points reading those made up horrible names. Except Fiona and Guinevere.

On what day of the week is fiona unique?

Unique means as existing as the only one or as the sole example. This implies made up. That's rarely a good thing. None of the names you listed are truly unique. Different or odd, yes.

Accalia~ 0~ It sound like a car brand.
Doriana~ 5~ It's smushed. I don't like smushed name. I'd like Dori or Dory Anna, though.
Elowyn~10~ Outstanding. I see it on here all the time.
Fiona~10~ One of my favorites.
Guinevere~ 0~ Too character specific for me.
Isadora~ 5~ Okay but very person specific for me.
Kassandra~0~ I don't mind the name. I dislike the K. Cassandra gets a 7.
Lorelei~ 10~ Lovely name.
Nerissa~5~ I don't hate it. I just don't really like it.
Olwyn~0~ Looks like a boy's name misspelled. I like Owen and I like Olin but not Olwyn.
Rowelia~0~ Tries too hard to be different and fails.
Ulyssa~0~ Looks like a name used when someone asks you to give a name for each letter of the alphabet.
Vivien~5~ I have a problem with the spelling. If you want Vivian spell it as such. If you want Vivienne, spell it as such.
Yleanora~0~ In theory it sounds nice but it's a horrendous spelling. Eilenora...Ilenora..both look better.
Zara~0~ I realize this is a real name. It just looks like someone took the "S" off Sara and put a "Z" on.

Fiona is probably best. Zara is ok. Most of them are nonsense and really lame.

When I hear the name Vivian, all I can think of is Pretty Woman. Which means I think of a hooker.

I love Fiona and Zara

Accalia - 8
Doriana - 5
Elowyn - 6
Fiona -5
Guinevere - 6
Isadora -9
Kassandra - 5
Lorelei - 7
Nerissa -6
Olwyn - 6
Rowelia (row-EE-lee-uh) - 6, (row-EEL-yuh) - 8
Ulyssa - 7
Vivien -8
Yleanora (EYE-lee-uh-NOR-uh) - 6 (I would like it more as ill-lee-uh-nora, 9)
Zara - 7

Accalia 5/10
Doriana 4/10
Elowyn 2/10
Fiona - 4/10 There isn't anything particularly wrong with the name and this may sound ridiculous but it reminds of Fiona from Shrek and that connection is enough for me to steer clear from the name.
Guinevere 4/10 It's not my favourite and it's very dated, but at the same time it has that vintage charm so it's an okay name.
Isadora 6/10 Pretty good name, very foreign sounding.
Kassandra 8/10 Very cute and classic name, love the nickname Kassie!
Lorelei 4/10
Nerissa 3/10
Olwyn 2/10
Rowelia (row-EE-lee-uh / row-EEL-yuh)
I prefer the first pronouncation. 3/10
Ulyssa - 1/10 I like the name Alyssa much better. Again another werid connection but it reminds me of Ursula from the Little Mermaid.
Vivien - 6/10 It's okay, just not my favourite of names.
Yleanora (EYE-lee-uh-NOR-uh) 1/10 Kind of harsh sounding and complicated to pronounce at first sight without any help.
Zara - 9/10 I love the name Zara, it's gorgeous and unique without being too crazy!

Accalia- 4/10
Doriana- 6/10
Elowyn- 5/10
Fiona- 8/10
Guinevere- 6/10
Isadora- 7/10
Kassandra- 8/10
Lorelei- 8/10
Nerissa- 5/10
Olwyn- 4/10
Rowelia- 6/10
Ulyssa- 5/10
Vivien- 8/10
Yleanora- 4/10
Zara- 7/10