a.

1. （學說等）站得住腳的，經得起批判的
   His new theory is tenable.

   他的新理論是站得住腳的。

2. （陣地等）守得住的，可防守的
   a tenable position

   能防守的陣地

3. 可保持（某一段時間）的[F][（+for）]

adj.

1. able to be maintained or defended against attack or objection.
2. (of an office, position, etc.) able to be held or used:
   a scholarship tenable for three years.