I do not think I have ever known a single Antonia either. I know a Toni, who I am pretty sure is just a Toni. And I know a Caitlyn Toni. But yeah, no Antonias. I think I like Antonia, though. I think your three words are good descriptors.
One momma namenerdin' in the fleeting quiet moments between
delighting in and losing my mind amidst my four kiddos
To peruse my top 100ish names:
http://www.behindthename.com/pnl/82589Bits of blogging here:
http://jodifriesen.blogspot.ca/And family cuteness here:
https://www.flickr.com/gp/41705