faintest idea

Without any training in or natural bent for diplomacy, Aguinaldo had not the faintest idea of what foreign “protection” signified.

Mea, Kurt and Lippo were hunting everywhere for their mother, for they had not the faintest idea where she had gone.

I cast a triumphant glance at my impassive rival, who, up to this moment, had not the faintest idea what the proposed ordeal was.

Just how he was going to proceed with his colossal undertaking he had not the faintest idea.

Neither of us had the faintest idea what the other said, but it was a change!