Antonyms of adj correctable

2 senses of correctable

Sense 1
correctable -- (capable of being returned to the original condition; not necessarily permanent; "a correctable image")

INDIRECT (VIA reversible) -> irreversible -- (incapable of being reversed; "irreversible momentum toward revolution")

Sense 2
amendable, correctable -- (capable of being corrected by additions; "an amendable flaw")

INDIRECT (VIA corrigible) -> incorrigible -- (impervious to correction by punishment)

Similarity of adj correctable

2 senses of correctable

Sense 1
correctable -- (capable of being returned to the original condition; not necessarily permanent; "a correctable image")
       => reversible (vs. irreversible) -- (capable of reversing or being reversed; "reversible hypertension")

Sense 2
amendable, correctable -- (capable of being corrected by additions; "an amendable flaw")
       => corrigible (vs. incorrigible) -- (capable of being corrected or set right; "a corrigible defect"; "a corrigible prisoner")