hard as nails
Very unsympathetic; callousVery unsympathetic; callous.
Meaning
2 senses(idiomatic, not comparable)Very unsympathetic; callous.
(idiomatic, not comparable)Able to endure difficulties; tough.
Very unsympathetic; callousVery unsympathetic; callous.
(idiomatic, not comparable)Very unsympathetic; callous.
(idiomatic, not comparable)Able to endure difficulties; tough.