Black's knives were known to be exceedingly tough, yet flexible, and his technique has not been duplicated.

Nor did a man make the ascent from common spearman to sub-strahteegos without being an exceedingly tough and thick-skinned soldier.

With exceedingly tough restrictions, San Francisco remains a strong office market, and real-estate values remain high.

Yet the effectiveness of these laws has proved exceedingly tough to gauge.

The boy is small, but exceedingly tough.

She was, of course, an exceedingly tough creature.

This year, the game has changed drastically and, for many players, times are exceedingly tough.

It is exceedingly tough, and it is chiefly used for making the spokes of wheels.

There are also diners, soda shops and numerous restaurants that lasted only a season or two in an exceedingly tough industry.

Cyborgs could be exceedingly tough and clever.