inexhaustible

All along he poured his inexhaustible love of tricky form into doodles he calls “ambigrams.”

On “Your Show of Shows” and other sketch programs, Sid Caesar mined a comic vein that seemed, in its time, inexhaustible.

The poverty of Newark, N.J., in fact, served as Roth’s inexhaustible native ground.

But again, these are not inexhaustible pots of money.

It will find new cures for deadly diseases, solve climate change and invent an inexhaustible supply of clean energy, they argue.