Meanings of have an ironclad in English

And even if I was...which I'm definitely not...I have an ironclad rule.

And they seem very, very convinced they have an ironclad case.

Not only would he have a herd of complimentary character witnesses, he would have an ironclad alibi.

Remember, Jessup has an ironclad alibi for the last twenty-four years.

And I'm sure he has an ironclad alibi to cover what happened here tonight.

Victor had an ironclad reputation for getting the job done, no matter how dirty.

They had an ironclad connection to one victim and a possible connection via Blomkvist to the other two victims.

His firm has an ironclad contract with CI, and he's the only one with clearance all the way up-

The neighbor, who spray-painted Anne Morton's house with obscenities after she called the cops on him for his loud parties, has an ironclad alibi.

Hannah decided she would check with her mother at the Regency Romance Club meeting, but it seemed as if Norman had an ironclad alibi.

"You have an ironclad alibi."