Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR HARD-AS-NAILS

How she come to be related to that hard-as-nails Joe Stagg is a puzzler.

"Hard-as-nails" the girls sometimes called her, for she coddled nobody and expected the utmost from each one's capacity.

MORE RELATED WORDS FOR HARD-AS-NAILS

determined

adjectivedriven, persistent
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.