relatively simple
fairly simple
quite simple

All things considered, it should be a relatively simple job.

It had to be something relatively simple, he told himself.

The plan was relatively simple, once he thought it out.

In environmental health research, the focus has moved from relatively simple to more complex issues.

All blood tests are relatively simple and easy to understand.

And what I did was a relatively simple thing for us.

The areas in which choice is wanted may be relatively simple to offer.

It must be relatively simple to make such a change of position.

However once the line has been set up, control is relatively simple.

It would have been a relatively simple job to set the place on fire.