1. Hard as granite
   - granitic, granitelike, stony

See also: hard

• ingesta
• ingestion
• ingle
• inglenook
• inglorious
• ingloriously
• Ingmar Bergman
• ingoing
• ingot
• ingot iron
• ingraft
• ingrain
• ingrained
• ingraining
• ingrate
• ingratiate
• ingratiating
• ingratiatingly
• ingratiation
• ingratiatory
• ingratitude
• ingredient
• Ingres
• ingress
• ingression