He knew instinctively that tears would not be in order, might even prove treacherous.

If any among you prove treacherous again, your families will die.

The others soon gave up their pursuit and turned back when the road proved too treacherous.

I shall get into ground that will prove treacherous to him.

His feet squelched in the grass and I thought that the ground would prove treacherous.

California may also prove treacherous to President Bush's reelection plans for 1992.

If they prove treacherous, the cost in dweller lives would ultimately be far greater.

They soon find that the waters of Thailand prove more treacherous than they could have anticipated.

Most financial advisers recommend steering clear of the futures markets, which can prove treacherous even for experts.

Still, the politics of abortion has long proved treacherous, particularly for those who stray very far from the middle ground of public opinion.