hard as nails

see definition of hard as nails

as ininsensitive
as instrong
as inthick-skinned
as intough
as inunbending
as inhard-bitten
as ininsusceptible
as inpuissant
as incutthroat
as indetermined
as inhard
as inhard-boiled
as inhardened
as inheartless
as inimperturbable
as indurability

Synonyms for hard as nails

adj indifferent, callous

Antonyms for hard as nails

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

hard-boiled

adjective. tough

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

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