(1):

(a.) Full of health; free from illness or disease; well; whole; sound; healthy; as, a healthful body or mind; a healthful plant.

(2):

(a.) Serving to promote health of body or mind; wholesome; salubrious; salutary; as, a healthful air, diet.

(3):

(a.) Indicating, characterized by, or resulting from, health or soundness; as, a healthful condition.

(4):

(a.) Well-disposed; favorable.