It was a formidable achievement.

On a recent tour, the ethnic divide was evident, along with the formidable achievements of the Corps.

The construction of a "competent Federal Government effectively from a standing start was one of the greatest of Adenauer's formidable achievements".

Only the formidable technological achievements of German science and industry have saved them.

Well reasoned and impressively researched, "Migrations and Cultures" is, in the end, a formidable achievement.

He said something to the ballet mistress in quiet Russian which made her chuckle-a formidable achievement.

And it would be a formidable achievement, if Mr. Bleckner actually did pull it off.

Certainly, as a first attempt at the complete role, this was a formidable achievement, easily outclassing recent stabs at "Norma" at the Met.

The building of a motorway across the Massif Central is, in itself, a formidable achievement.

The landmark Diorissimo, a fragrance based on the smell of lily of the valley, marked a formidable achievement in the field of perfumery.