"Flagitiousness" Natural Recordings by Native Speakers
Flagitiousness refers to the quality of being flagitious, which means being wicked, scandalous, or outrageous. It can also describe the state of being severely corrupt or depraved. Flagitiousness implies a high degree of moral turpitude or evil, often to the point of being shocking or depraved.
I'm afraid there is no word "flagitate". It's possible that it's a made-up or non-existent word, or it could be a misspelling or variation of a different word. If you could provide more context or clarify the word, I'd be happy to try and help you understand its meaning.
Flagrantly refers to something that is done or done in a bold, open, and shameless way, often in a way that is considered to be wrong or unethical.