tenable

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

From the French tenable, from tenir (“to hold”); compare tenible.

If this were continued, the barricade was no longer tenable. — Les Misérables, Victor Hugo
The place was, in fact, becoming less and less tenable. — Notre-Dame de Paris, Victor Hugo
Tenable. Capable of being held; as ground taken for argument. — Orthography : $b as outlined in the state course of study for Illinois : seventh and eighth years, Elmer W. (Elmer Warren) Cavins

well-founded

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