Ten"a*ble (?), a. [F. tenable, fr. tenir to hold, L. tenere. See Thin, and cf. Continue, Continent, Entertain, Maintain, Tenant, Tent.] Capable of being held, naintained, or defended, as against an assailant or objector, or againts 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.

I would be the last man in the world to give up his cause when it was tenable.

Ten"a*ble (?), a. [F. tenable, fr. tenir to hold, L. tenere. See Thin, and cf. Continue, Continent, Entertain, Maintain, Tenant, Tent.] Capable of being held, naintained, or defended, as against an assailant or objector, or againts 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.

I would be the last man in the world to give up his cause when it was tenable.

• (of a theory, argument etc) capable of being maintained or justified; well-founded
  
• (of a defensive structure) capable of being defended against assault or attack; defensible