Not a particularly ingenious effort.

The spearhead of this crusade is a pair of ingenious efforts to exploit the forests on behalf of medicine.

Because of his ingenious efforts, he was receiving his share of the glory.

But paper often persists despite the most ingenious efforts to displace it.

It took massive and ingenious efforts, in the 1870's, to construct Race Rock Lighthouse.

Lowrence, struggling to uphold even this reduced penance, makes an ingenious effort to get around it and pays a sore price.

You see, the surgeons made a rather ingenious effort to cover their tracks.

As soon as nature began to shrink under ingenious human efforts to dominate it, imagination magnified the charms of untouched land.

I see here an ingenious effort, to be sure, and the antics are amusing enough.

The interpretation of this inscription has stimulated ingenious efforts and very animated controversies.