A gaslighting novel often involves a character being made to doubt their own reality. For example, in 'Gone Girl', Nick is made to seem like he's losing his mind due to Amy's elaborate schemes.
In '1984' by George Orwell, the Party gaslights the citizens. They constantly rewrite history, making people doubt their own memories. For example, if someone remembered a certain event one way, the Party's revised version would make them question their sanity. Another is in 'The Matrix'. When Neo first starts to realize the truth, the agents try to make him think he's crazy, denying the reality he's starting to perceive.
The term 'gaslighting' originated from the 1944 movie 'Gaslight'. In the movie, a man tries to drive his wife insane by manipulating the gaslights in their house and making her doubt her own perceptions. This behavior of psychological manipulation and making someone question their reality came to be known as 'gaslighting'.
Splendid was similar to resplendent, gorgeous, magnificent, wonderful, brilliant, glorious, gorgeous, bright, beautiful, rich, gorgeous, gorgeous, brilliant, and so on.
The synonymous words of great momentum were: great fanfare, magnificent mountains and rivers, all-powerful wind and clouds, swallowing mountains and rivers, vast seas, ten thousand horses galloping, magnificent, heroes achieving success, and majestic.