[R_Kangel]

‘Sort of a pretty good idea’........

..... OK ....... Just What does he mean by the word ..... "Pretty???"

.

[dragnet2]

... OK ....... Just What does he mean by the word ..... "Pretty???"

That's American slang for, a clear picture of something he approves of and or is confident about. It's been used by Americans for hundreds of years. What country are you from?

[Jonty30]

It could mean attractive, but it also means a certain level of uncertainty to the certainty.

If I say, “I am certain”, there is no question about my personal assurance to my position.

If I say, “I am pretty certain”, it adds a degree of uncertainty to your personal assurance to your position.