Otiose can be used as given below examples,
Through the evolution, some organs in our bodies are rendered otiose.
All my hard work went otiose when I didn’t select for the project.
Adjective Otiose: of no use, something which is useless, unfruitful, futile
Used to describe something which has been done but got into vain or some proposed idea which is pointless
Otiose has synonyms like wasted, senseless, futile aimless, neglectful, idle superfluous, pointless, inefficient
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