Na-adjective (keiyodoshi)stubborn; dogged; persistent; tenacious · tough; sturdy; hardy; strong

Na-adjective (keiyodoshi), Nounstubborn; obstinate; pigheaded

Na-adjective (keiyodoshi), Nounsolid; firm; stout; burly; strong; sturdy

Godan verb with 'ru' ending, Intransitive verbto persevere; to persist; to keep at it; to hang on; to hold out; to do one's best · to insist that; to stick to (one's opinion) · to remain in a place; to stick to one's post; to refuse to budge

Nountenacity; endurance