abnegative
adj. C2 Proficiency ab·ne·g·a·tive
adj. having no value or being of no use. It is an old word that people rarely use today.
adj. having no value, utility, or significance.
The old map was abnegative and useless for navigation.
The critic dismissed the performance as abnegative, failing to provide any meaningful insight into the play's themes.
In the final analysis, the treaty proved abnegative, offering neither party the leverage they sought to resolve the territorial dispute.
From Latin abnegativus.