Definition of "frailness" [frail•ness]

• The state of being frail; frailty; weakness. (noun)

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• "Her thinness and her oldness are the sum total of her frailness."
• "Rather than realize the frailness of the human condition, each mishap reinforced our belief that we were invincible or at least perpetually lucky."
• "The frailness of Vishneva's Giselle is always apparent in a way that truly makes you fear for her."