The phrase "a vigorous material" is correct and usable in written English.
It can be used to describe a substance or item that is strong, energetic, or robust in nature.
Example: "The artist chose a vigorous material for her sculpture, ensuring it would withstand the test of time."
Alternatives: "a robust material" or "a dynamic material."
And most vivid of all, for me at least, Moses Herzog, Bellow's most achieved dreamer, the least practical of men in an America of vigorous, material pursuits.
The party strongly endorses Germany's leading role in the EU, its membership in the North Atlantic Treaty Organization NATOO), a free market economy, and vigorous material assistance to the countries of the former communist bloc, especially the onetime Soviet republics.
As the actors take their seats, in chairs facing front, you may well wonder how much theatrically vigorous material they are likely to find, given the commonplace nature of divorce these days.
Ultimately, this audience was excited – to witness a vigorous performance of material from new album the Traveller, and to bask in the personalities of Bassy, Maal and the host of spirited and joyous musicians who joined them on stage.
There was also a vigorous trade in bat guano fertilizer between Peru and Ireland, and that material could have transported the blight.
On the nonacademic level, the interpretation of prophetic and apocalyptic biblical material in terms of present-day events remains a vigorous pursuit in some circles.
This growth comes amid a vigorous debate in the broader world of education about whether courses and material should be tied more tightly to the job market.
These blueprints and other documents, while largely available in the public domain, sharpen the need for a vigorous American policy to deal with unsecured nuclear, chemical and biological materials.
Geffen had about him a vigorous energy.
