simply

In a simple way or state; considered in or by itself; without addition; alone.

Plainly; without art or subtlety

Foolishly; stupidly.

Mrs. Thorold had told her sons that a young lady was visiting at the house, whose history she had given them in short hand, describing her as a dependent on the late Mrs. Willoughby, whom her son had very simply intended to marry at Alvestone […].

Merely; solely.

I was simply asking a question.

A “moving platform” scheme[…]is more technologically ambitious than maglev trains even though it relies on conventional rails.[…]This set-up solves several problems […]. Stopping high-speed trains wastes energy and time, so why not simply slow them down enough for a moving platform to pull alongside?

absolutely, positively.

That was a simply wonderful dessert.

This type of comportment simply won't be tolerated.