ironclad

adjective/ˈaɪərnklæd/

Frequency rank: #16,838 most common English word

Meaning

completely firm and impossible to change or break; unassailable.

Illustration for the English word “ironclad”

Example sentence

The contract included ironclad terms that neither party could change once signed.

Synonyms & related words

Practice this word in the quiz

More words in ranks 16,801–16,900