Many vital elements were already excessively scarce, and no satisfactory substitutes had been found.

But computers have steadily shown that mere acceleration may be a satisfactory substitute.

Scattered mentions by Herodotus do not provide a satisfactory substitute.

There was no satisfactory substitute for breast milk.

Anniversary speeches are nearly always pathetic in their insistence that experience is a satisfactory substitute for the dreams of youth.

"Well, I will try to be a satisfactory substitute, then."

Land cress is considered a satisfactory substitute for watercress.

The big guns were not a wholly satisfactory substitute for the armament in their sister-ships.

We will hope he will find me a satisfactory substitute.

However, none of these sites is a satisfactory substitute for professional help.