Fantastical is normally used critically to describe something someone finds strange.

'Moana' is delightful. Unexpectedly fantastical with some very catchy songs. A little ray of sunshine. You're welcome!

— Mark Gatiss 💙 (@Markgatiss) March 6, 2017

Had such a lovely day, it's been a gorgeous christmas! (: I hope everyone has had a fantastical christmas too! (: Perrie <3

— Little Mix (@LittleMix) December 25, 2012

“helping” setup the 2021 #holidazzle
(Manifesting to sit still to get a fantastical photo tomorrow with mom for the Christmas card) 🤍💌🤍💌🐿 pic.twitter.com/mPk6QOd1Nd

— Sally Baker (@DoubleSal) December 17, 2021

Did you mean fantastically?