We must respect the Soviet Union as a strong and worthy adversary.
Then he changed direction and launched himself at his bigger, stronger adversary.
We couldn't count on our old friends for help, because Iran is a pretty tough adversary, far stronger than Iraq was.
Violence, crime and drugs, however, are strong adversaries.
The last part of his plan will be the hardest - because on the road to recovering her love he'll be confronted with strong adversaries.
It encountered yet another strong adversary - the military and political machine of the Ottoman state.
The strongest adversary is a government-level agency interested in global surveillance.
He was competing with an adversary too strong for him.
And even if it could, she had stood up to bigger, to stronger adversaries.
General Aidid and his several hundred staunch supporters have proved strong adversaries.