As hard as stone synonyms | adjectives

Synonyms for As hard as stone as an Adjective

• firm
• solid
• rigid
• stiff
• resistant
• unbreakable
• inflexible
• impenetrable
• unyielding
• solidified
• hardened
• compact
• compacted
• dense
• close-packed
• compressed
• steely
• tough
• strong
• stony
• rocklike
• flinty
• frozen
• adamantine