01 a. Capable of being held, maintained, or defended, as against an assailant or objector, or against attempts to take or process; as, a tenable …
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Capable of being held, maintained, or defended, as against an assailant or objector, or against attempts to take or process; as, a tenable fortress, a tenable argument.“If you have hitherto concealed his sight, Let it be tenable in your silence still.” — Shak.“I would be the last man in the world to give up his cause when it was tenable.” — Sir W. Scott.