tenable
Able to stand
Tenable describes a position, argument, or situation that can be maintained or defended against challenge: The theory is no longer tenable in light of new evidence.
A tenable military position can be held against attack.
The word often appears in the negative—calling something untenable means it cannot be sustained or justified.
Able to be justified
- justifiableAble to be defended
- supportableAble to be justified
- holdableCan be clutched
- securableAble to be locked
protectable · fortifiable · sustainable · viable · workable · practicable · operable · functional
Able to convince
- plausibleAppearing worthy of belief
- convincingAble to persuade
- credibleWorthy of acceptance
- reasonableShowing sound judgment
rational · logical · sound · coherent · consistent · valid · legitimate · authentic
Able to endure long-term
- enduringPersisting through time
- lastingContinuing through time
- durableAble to withstand use
- stableSecure and unchanging
viable · continuable · preservable · ongoing · persistent · long-term · renewable · supportable
defensible
Able to be justified
- justifiableAble to be defended
- supportableAble to be justified
- holdableCan be clutched
securable · protectable · fortifiable · sustainable · viable · workable · practicable · operable · functional · manageable
believable
Able to convince
- plausibleAppearing worthy of belief
- convincingAble to persuade
- credibleWorthy of acceptance
reasonable · rational · logical · sound · coherent · consistent · valid · legitimate · authentic · reliable
sustainable
Able to endure long-term
stable · viable · continuable · preservable · ongoing · persistent · long-term · renewable · supportable
- feasibilityfeasibility, feasible, viability, viable, practicality
tenableuntenable
Impossible to maintain
indefensible · unsupportable · illogical · irrational · unreasonable
tenableuntenable
Impossible to maintain
indefensible · undefended · unprotected · vulnerable · exposed