submarginal /sub-märˈji-nəl/

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

• self-sacrifice
• self-sacrifices
• self-sacrificing
• selfsame
• self-sameness
• selfsames
• self-satisfaction
• self-satisfied
• self-satisfying
• self-schooled
• self-sealing
• self-seeder
• self-seeders
• self-seeker
• self-seekers
• self-seeking
• self-service
• self-services
• self-serving
• self-severe
• self-shielding
• self-slain
• self-slaughter
• self-slaughtered
• self-slayer