tenable

/ˈtenəbl/ adjective

Definition

› reasonable, or possible to achieve or defend: The Board has decided that his position as chairman is no longer tenable. a tenable approach/solution/point of view

› HR a job that is tenable for a particular period of time, or from a particular date, can be held for that period of time or from that date: tenable from sth Applications are invited for the chair of Governors, tenable from 1 September 2011.

(Definition of tenable adjective from the Cambridge Business English Dictionary © Cambridge University Press)