submarginal /sub-märˈji-nəl/

1. Near the margin
2. Below the minimum necessary
3. (of land) that cannot be farmed profitably

• advance
• advanced
• advanced gas-cooled reactor
• advanced guard
• Advanced Higher
• advance directive
• advance directives
• advanced level
• Advanced level
• advanced levels
• advanced passenger train
• advanced skills teacher
• Advanced Subsidiary level
• advance factories
• advance factory
• advance guard
• advance guards
• advance man
• advance men
• advancement
• advancements
• advance note
• advance notes
• advances
• advance workings