1. Not grammatical; not conforming to the rules of grammar or accepted usage
   - ungrammatical

See also: incorrect

• northing
• northland
• Northman
• northmost
• Northrop
• Northrop Frye
• Northumberland
• Northumbria
• northward
• northwards
• northwest
• northwest by north
• northwest by west
• Northwest Passage
• Northwest Territories
• northwest wind
• northwester
• northwesterly
• northwestern
• northwestern United States
• northwestward
• northwestwardly
• nortriptyline
• Noruz
• Norvasc