Somewhat, fairly, quite; sometimes also (by meiosis) very.
The phrase "is pretty straightforward" is a correct and usable phrase in written English. You can use it when you are trying to explain that a particular concept or task is easy to understand. For example, "The instructions for using this software is pretty straightforward; you just need to follow the steps on the screen.".
Making congee is pretty straightforward.
The offer is pretty straightforward.
"My view is pretty straightforward.
Actually, that is pretty straightforward.
The inspiration is pretty straightforward.
The rest is pretty straightforward".
"This is pretty straightforward," he said.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia