Lil Wayne's blaming his anti-black lives matter rant on Nightline's questions about his daughter -- and he's apologizing for the remarks.
Wayne tells TMZ ... "When the reporter began asking me questions about my daughter being labeled a bitch and a hoe, I got agitated. From there, there was no thought put into her questions and my responses."
As we told you ... Wayne blasted the movement, basically saying it didn't apply to him because he's young, black and rich. His comments came a few minutes after the reporter questions him about his daughter ... in ABC's edit, anyway.  
Wayne told us, "Apologies to anyone who was offended."