ironclad

That pressure is behind the chancellor's decision to flex the spending rules she used to boast about being "ironclad".

“When I say that my support for Israel is ‘ironclad,’ I mean it,” Garcia said in a statement.

He knows full well that the science on climate change is as ironclad as it gets.

My garage keys were in my apartment, and I didn’t have a way to maneuver behind the ironclad gates until my neighbor came to the rescue.

“Addiction is like an ironclad compulsion,” said Dr. Michael McDaniel, the medical director of Heartland House in San Diego.