You can use it - it's a real word that can be looked up. But I'm considered to have a pretty big vocabulary, and it wasn't in mine. So I would not get your meaning if you did use it. So if you're writing to people like me, I would not use it.
On the other hand, it could be that I don't know it because I've lived in the eastern part of the U.S. all my life, and it may be com
I'm English.I've been a teacher for forty years. I've got six grandchildren and five married children, lots of friends, read a lot, watch British television a lot and
- I've never heard or seen it used!!
It seems to come up in AmE dictionaries. I don't think it would be sensible to use it in conversation with Brits.
Etymology: probably from 1big + -ety or -ity (as in persnickety or persnickity) 1 South & Midland : CONCEITED, VAIN 2 South & Midland : rudely self-important : assertively independent : IMPUDENT <all that biggety talk of his> <a little authority and some folks act mighty biggety>