Words similar to iron-clad

Example sentences for: iron-clad

How can you use “iron-clad” in a sentence? Here are some example sentences to help you improve your vocabulary:

The WP , like USAT , also mentions Albright's pledge to Israel of an "iron-clad commitment" to defend Israel in case it is attacked by Iraq, but doesn't include Netanyahu's response, reported by USAT , that unlike in 1991 during the Gulf War, Israel will now feel free to defend itself.
I have an iron-clad rule about colleagues and sex (i.e.