1: overtaken by darkness or night.
2: existing in a state of intellectual, moral, or social darkness: unenlightened.
“Yes, she did sing,” he said, “but only as a stand-in, an understudy, a second-best, and she couldn’t bear it, she needed her big break. She was mortally jealous of Sophia. So she pushed her luck, she got her poor benighted brother to attack Sophia, so that she would be able to take her place on stage, a simple idea.” – The Three Evangelists, Fred Vargas.