1. Certain to be successful
   "a sure-fire way to get rich"

See also: successful

• ingeniously
• ingeniousness
• ingenuity
• ingenuous
• ingenuously
• ingenuousness
• Inger
• Ingerman
• ingest
• ingesta
• ingestion
• ingle
• inglenook
• inglorious
• ingloriously
• Ingmar Bergman
• ingoing
• ingot
• ingot iron
• ingraft
• ingrain
• ingrained
• ingraining
• ingrate
• ingratiate