The state or condition of being hardy (in various senses); hardiness.

The quality of being ‘stalworth’.

Physical strength or force; vigour, might; toughness, strength of character; mettle, backbone.

Capability of enduring hardship, discomfort, or harsh conditions; (in later use) esp. physical robustness.

The condition or quality of being robust (in various senses); sturdiness, hardiness; strength.

Physical strength; robustness, sturdiness, stalwartness of (body). rare.

The quality or state of being physically strong or sound; robustness, strength. Obsolete.

Robustness; boisterousness.

Robustness, esp. physical robustness of the body or a bodily structure.

Capability to endure physical hardship; robustness; = hardiness, n. 3.

Iron character, quality, or nature; strength, steeliness.

Hardened condition of body; ability to endure hardships.

Robustness.

The quality or condition of being stalwart; robustness, strength.