1. Tireless determination
   - indefatigability, tirelessness

Derived forms: indefatigablenesses

See also: indefatigable

Type of: determination, purpose

• Natrix
• Natrix maura
• Natrix natrix
• Natrix sipedon
• natrolite
• natron
• Natta
• natter
• natterjack
• nattily
• nattiness
• natty
• natural
• natural ability
• natural action
• natural childbirth
• natural covering
• natural depression
• natural elevation
• natural enclosure
• natural endowment
• natural event
• natural family planning
• natural fiber
• natural fibre