The slenderness of the bone suggest a lithe animal. Gracility is slenderness, the condition of being gracile, which means slender. The portrait emphasises the subject's height and the slenderness of her waist. The slenderness ratio is important for design considerations. In the West, slenderness is associated with happiness, success, youth, and social acceptability. In structural engineering, slenderness is a measure of the propensity of a column to buckle. This gives it a slenderness ratio of 1&colon;20 at its base. Elisabeth emphasised her extreme slenderness through the practice of "tight-lacing". With a slenderness ratio of 4.6&colon;1 "Inflexible" was a stable gun platform. It is also notable for the slenderness of its piers, unsurpassed in antiquity. Park's slenderness and simplicity have been the subject of both praise and criticism. The columns are remarkable for their comparative slenderness. Because of their slenderness, some narrowboats seem very long. The Town Hall is distinguished by its slenderness and grace. This means that slenderness and the level of mineralization have probably been co-adapted.