Audrey Griffin posted a long message on Twitter Thursday ... claiming she experienced several incidents of violence from Adrian -- including when she was pregnant.

"How can someone continuously get away with abuse, almost take a life choking them while on the floor and almost passes out, throw them into a wall making a hole as big as their body, drag them across a lawn while pregnant ..." part of Audrey's message says.

Audrey continued ... "One thing I have realized is that I have been quiet and accepting of abusive behavior for far too long. And me staying silent has allowed sin to thrive. I can’t be quiet anymore. It’s too much to bear."

Adrian -- who starred at Seton Hall University and played 9 years in the NBA -- just released a statement through the Raptors ... saying his ex-wife is flat-out lying.

"This morning, accusations were made against me on social media by my former wife that I vehemently deny," Adrian says.

"We are involved in a longstanding legal dispute over alimony and child support arrangements. I am disappointed to have to address false accusations in this way, and I apologize for any distraction this has potentially caused for our team at this important time."

The Raptors added ... "When we saw these allegations this morning, we were dismayed -- Adrian is a valuable member of our team."