This was a much more formidable undertaking, and promised no quick results.

This was a formidable undertaking that required the successful resolution of multiple complex legal, financial, and business system issues.

The film's major stars and relatively big budget - $26 million - make it a formidable undertaking for an independent company.

And who better to handle this formidable undertaking than you, our loyal customers?

"A rather formidable undertaking, I would say, since they steadfastly refuse to acknowledge our existence."

Soon, what was once a formidable undertaking became easy.

In the course of thirty years or so, Trafalgar House became a formidable international industrial and commercial undertaking.

Getting people to draft advance directives is a formidable undertaking.

The attempt to give an overall picture of the 400 million women of India is a formidable undertaking.

Getting past them looked like a formidable undertaking.