Tenable

Adjective

 * 1)   capable of being maintained or justified; well-founded
 * Back in the 1800's, many did not consider Darwin's theory of evolution to be tenable at all.
 * 1)  capable of being defended against assault or attack; defensible

Antonyms

 * untenable

Adverbs for Tenable
scarcely; soundly; rationally; reasonably; logically; incontrovertibly; obviously; undeniably; easily; manifestly; validly; legally; satisfactorily; basically; effectively; inferentially; sensibly; fundamentally; essentially.

Thesaurus
OK, acceptable, admissible, agreeable, all right, alright, arguable, believable, colorable, conceivable, condonable, credible, creditable, defendable, defensible, excusable, fiduciary, good enough, imaginable, impregnable, justifiable, maintainable, okay, passable, plausible, possible, rational, reasonable, reliable, secure, supportable, trustworthy, trusty, unexceptionable, unimpeachable, unobjectionable, unquestionable, viable, vindicable, warrantable, workable, worthy of faith

Etymology
From the tenable:, from tenir:; compare tenible:.

Translations

 * German:
 * Norwegian Bokmål:


 * Norwegian Nynorsk: haldbar


 * German: verteidigungsfähig

Anagrams

 * Beltane