What Nau was up to should have been instantly obvious.

For it had been instantly obvious that she had neither strength nor skill in swimming.

When the right restaurant moves into a neighborhood, it is instantly obvious.

While the survey turned up no instantly obvious hit songs, the value of the Secaucus find still proved substantial.

The source of the odor was obvious instantly.

The answer - as I am sure will be instantly obvious to you - is 100 X 99.

It was instantly obvious that they couldn't hope to shift the downfall.

The reason for the glaring brilliance was instantly obvious.

Instantly obvious to Lang, it nonetheless would never have occurred to him.

It was not instantly obvious that Thomas had lost his temper.