Antonyms of adj justifiable

1 sense of justifiable

Sense 1
justifiable -- (capable of being justified)

INDIRECT (VIA excusable) -> inexcusable -- (without excuse or justification)

Similarity of adj justifiable

1 sense of justifiable

Sense 1
justifiable -- (capable of being justified)
       => excusable (vs. inexcusable) -- (capable of being overlooked)