i-adjective
burly; sturdy; strong (physique)
Describes a person's body or build as thick, muscular, and robust. Often used for men.
彼はたくましい体つきをしている。
He has a sturdy build.
That athlete has muscular arms.
i-adjective
indomitable; strong-willed; resolute
Describes a person's spirit, will, or mental toughness. Implies resilience and determination.
彼女はたくましい精神力で困難を乗り越えた。
She overcame the hardship with indomitable mental strength.
たくましい野心を持って起業した。
He started the business with bold ambition.
i-adjective
robust; strong (vitality, appetite, growth)
Used for non-physical strength: robust vitality, hearty appetite, strong economic growth, etc. Often in set phrases like たくましい食欲 or たくましい成長.
子供たちはたくましい食欲を見せた。
The children showed a hearty appetite.
この地域の経済はたくましい成長を遂げている。
The economy of this region is achieving robust growth.