Antonyms of adj indefensible

3 senses of indefensible

Sense 1
indefensible, untenable -- ((of theories etc) incapable of being defended or justified)

INDIRECT (VIA unreasonable) -> reasonable, sensible -- (showing reason or sound judgment; "a sensible choice"; "a sensible person")

Sense 2
indefensible -- (not able to be protected against attack)

INDIRECT (VIA vulnerable) -> invulnerable -- (immune to attack; impregnable; "gunners raked the beach from invulnerable positions on the cliffs")

Sense 3
indefensible, insupportable, unjustifiable, unwarrantable, unwarranted -- (incapable of being justified or explained)

INDIRECT (VIA inexcusable) -> excusable -- (capable of being overlooked)

Similarity of adj indefensible

3 senses of indefensible

Sense 1
indefensible, untenable -- ((of theories etc) incapable of being defended or justified)
       => unreasonable (vs. reasonable) -- (not reasonable; not showing good judgment)

Sense 2
indefensible -- (not able to be protected against attack)
       => vulnerable (vs. invulnerable) -- (susceptible to attack; "a vulnerable bridge")

Sense 3
indefensible, insupportable, unjustifiable, unwarrantable, unwarranted -- (incapable of being justified or explained)
       => inexcusable (vs. excusable) -- (without excuse or justification)