Like for example, there is one movie's name which is based on a type of afterlife the greeks believed in, which is in another religion. I said it in my head by mistake, and said it aloud. The name itself in the movie is used to refer to a space station, is it a sin? Did I do something haram?
In Islam All The Sins And Rewards Are Based Upon Our Intentions... If Someone Knows Any Thing That Is Not Good But S/He Does, Then He's Responsible For His Actions. As You Have Said That You Do Not Want To Say That Word But In The Mind You Just Whispered It UnIntentionally Then It Is All Ok. By The Way Make Istighfaar Recitation In Your Daily Routine And Do Try To Ignore All The Stuff That Make You Think Blasphemous Un Or intentionally. ALLAH Bless You.